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Stenogyne rotundifolia

A.Gray (1862)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Lamiales Family: Lamiaceae Genus: Stenogyne

pua‘ainaka [puaainaka]

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Description

Key Characters:

Growth Form: Scandent vines climbing to 5 m.

Stems: Stems sharply 4–angled, densely hispid or moderately so with hairs concentrated on stem angles.

Roots:

Leaves: Leaves simple. Opposite. Blades suborbicular, 1.9–5.2 cm long, 1.9–4.5 cm wide. Apex obtuse or occasionally acute. Base cordate or occasionally truncate. Surfaces glabrous or sparsely hispid; blades membranous. Margins serrate. Petioles 6–18 mm long, moderately hispid. Stipules absent.

Flowers: Flowers 6(–8) per verticillaster, axillary, pedicels 4–6 mm long, hispid. Calyx weakly bilabiate, campanulate, 6–11 mm long, enlarging in fruit, sparsely pubescent near base, the teeth acute, 1–4 mm long, 2.5–3.5 mm wide at base, splitting longitudinally, usually persistent or sometimes only ventral 1/2 persistent. Corolla bilabiate, cream or pale pink distally, very densely pubescent externally, glabrous within, tube narrowly funnelform, slightly falcate, 15–21 mm long, upper lip 4–9 mm long, entire or 2-lobed, flat or concave, lower lip ca. 3 mm long, 3-lobed, the lobes flat or margins revolute, ovate, of similar size, distal portion of corolla sparsely to densely pubescent externally, the hairs simple or multicellular, occasionally glandular pubescent within, otherwise glabrous; nectary disk often present at base of ovary, annular or developed on anterior side only. Stamens 4, both pairs of similar length or upper pair slightly longer, included within corolla or well–exserted beyond upper lip; filaments inserted near throat, pubescent; anthers dithecal; anther sacs divaricate, opening by longitudinal slits. Ovary superior, 2-carpellate, each carpel longitudinally divided, placentation basal-axile; ovules 1 per ovary lobe; style 1, exserted, arising between lobes, usually cleft, diverging after anther dehiscence, shortly 2-lobed, the lobes subulate; stigmas 2.

Fruit: Nutlets ca. 3 mm long; 1-seeded; drupaceous; black at maturity; margins slightly winged; obliquely attached at base; included within calyx at maturity; exocarp fleshy; obovoid. Seeds with endosperm absent or scanty and oily.

Ploidy:

Habitat: Occurring in wet forest.

Elevation Range: 1,800–2,150 m.

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Maui Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Proc. Amer. Acad. Arts 5: 347 (1862)

Other References

Wagner et al. 1990:841 (EM); Wood & Oppenheimer 2008:548 (KEY)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Stenogyne rotundifolia Haleakala, Kipahulu-Kuhiwa divide, Wai Anapanapa thicket Preserved_Specimen vine creeping; leaves subcoriaceous, above dark green, impressed rugose, below pale green; flowers white St.John, H. 20990 Maui BISH 1945-08-14
2 Stenogyne rotundifolia East Maui, Haleakala, N of Kuiki festooning trees in gulch Preserved_Specimen Degener, O. 12465 Maui BISH 1939-08-09
3 Stenogyne rotundifolia E Maui, Makawao District, Piinaau drainage basin Sprawling on ground and sometimes climbing adjacent vegetation. Vegetation: Metrosideros, Cheirodendron, Acacia, Myrsine, Melicope, Astelia, Sadleria, Dryopteris, Asplenium, Carex, Uncinia, Elaphoglossum, Peperomia Preserved_Specimen Vines; flowers white, with pink tinge Oppenheimer, H.L. 71006 Maui BISH 2010-07-08
4 Stenogyne rotundifolia National Park, Kaupo Gap to Kipahulu Valley, Kekuewa Camp Metrosideros, Cheirodendron trigynum, Broussaisia arguta, Melicope clusiifolia, Rubus hawaiensis, Diplazium sandwichianum, Sadleria pallida, Rubus rosifolius Preserved_Specimen scandant, many branched, leaves glossy dark green Wood, K.R. 6685 Maui BISH 1997-09-03
5 Stenogyne rotundifolia East Maui, crater of Haleakala, Kaupo Gap In pocket, deep shade. Preserved_Specimen Forbes, C.N. 1112 Maui BISH 1919-08-10
6 Stenogyne rotundifolia East Maui, crater of Haleakala, Kaupo Gap In pocket, deep shade. Preserved_Specimen Forbes, C.N. 1112 Maui BISH 1919-08-10
7 Stenogyne rotundifolia East Maui, Hana District, E Haleakala, 2 mi NE of Paliku Cabin, N of Wai Anapanapa ridge; with Metrosideros, Myrsine, Pelea, Cheirodendron; shaded rain forest Preserved_Specimen woody at base with stems twining to 15' high; flower ivory white, anthers purplish; fruit blue black Henrickson, J.S. 3528 Maui BISH 1969-06-18
8 Stenogyne rotundifolia Haleakala, Koolau Gap, east side Sunny and fogswept, gullied jungle. Preserved_Specimen Coarsely climbing tree to 12 ft.; corolla white or upper part faint pink. Degener, O. 25233 Maui BISH 1959-06-01
9 Stenogyne rotundifolia N Haleakala climbing over shrubs Preserved_Specimen leaves rough pubescent; flowers creamy white Forbes, C.N. 1150 Maui BISH 1919-08-15
10 Stenogyne rotundifolia East Maui, Hana District, NE Haleakala, 1.5 mi NE of Paliku Cabin, Wai Anapanapa in margin of rain forest, in open sun; with Dubautia plantaginea, Cheirodendron, etc. Preserved_Specimen vining Henrickson, J.S. 3907 Maui BISH 1969-07-18
11 Stenogyne rotundifolia Haleakala, Kaupo Gap, 2nd cove S of Waikekeehia in grove, in tree, lower N facing slope Preserved_Specimen vine climbing 2 m St.John, H. 21197 Maui BISH 1945-08-27
12 Stenogyne rotundifolia East Maui, Hana District, Tr 10(5), NW slope of Haleakala, Hana Forest Reserve, along Kalapawili Ridge Wet 'ohi'a forest with other native trees and a treefern and native shrub understory. Vine, many branches, forming climbing mat. Preserved_Specimen Corollas white Warshauer, F.R. 2545 Maui BISH 1980-05-21
13 Stenogyne rotundifolia Haleakala, Koolau Gap fog swept Preserved_Specimen Degener, O. 5443 Maui BISH 1927-08-17
14 Stenogyne rotundifolia East Maui, Waikamoi Preserve, pali above ainahou bowl, in small drainage Aspect W. Rare in subalpine shrubland. Vegetation: Subalpine shrubland. Sadleria, Deschampsia, Vaccinium, Dryopteris, Carex uncinata, Dubautia scabra, Lycopodium, Hypochoeris, Holcus, Carex aligata, Elaphoglossum, Oreogrammitis, Leptecophylla, Coprosma ernodeoides, C. montana Preserved_Specimen sprawling on flat ledge Pezzillo, Z. 74 Maui BISH 2022-11-18
15 Stenogyne rotundifolia Alaenui Ahupuaa, East Maui, on the trail between Lake Waianapanapa and Lake Waieleele. Transect MT, Station 10. Wet ohia forest with other native trees and anative shrub-matted fern understory. Preserved_Specimen Creeping, branched vine; Corolla white. Warshauer, F.R. 2543 Maui BISH 1980-05-21
16 Stenogyne rotundifolia East Maui, Hana District, Haleakala National Park, Kipahulu Valley, West Camp region. Headwaters of Palikea Stream. Montane Wet Forest Preserved_Specimen Rare vines; flowers white tinged pink. Vegetation: Metrosideros Oppenheimer, H.L. 52385 Maui BISH 2023-05-10
17 Stenogyne rotundifolia East Maui, Haleakala, N of Kuiki festooning trees in gulch Preserved_Specimen Degener, O. 12465 Maui BISH 1939-08-09
18 Stenogyne rotundifolia Haleakala, Koolau Gap, east side Sunny and fogswept, gullied jungle. Preserved_Specimen Coarsely climbing tree to 12 ft.; corolla white or upper part faint pink. Degener, O. 25233 Maui BISH 1959-06-01
19 Stenogyne rotundifolia East Maui, Hana District, Hana Forest Reserve over Vaccinium and Metrosideros near large bog Preserved_Specimen trailing Harrison, B. 241 Maui BISH 1973-06-29
20 Stenogyne rotundifolia Haleakala, Kaeanae Gap, Halehaku climbing over bush Preserved_Specimen filaments pubescent, exsorted; flower creamy white Forbes, C.N. 1027 Maui BISH 1919-08-03
21 Stenogyne rotundifolia NW Koolau Gap, Haleakala fog swept jungle Preserved_Specimen Degener, O. 12463 Maui BISH 1939-08-20
22 Stenogyne rotundifolia East Maui, Hana District, Hana Forest Reserve, above Wai Eleele on Vaccinium, edge of bog Preserved_Specimen vine like shrub Harrison, B. 271 Maui BISH 1973-06-29
23 Stenogyne rotundifolia E of Ukulele Preserved_Specimen flowers white, stem orange Forbes, C.N. 797 Maui BISH 1919-07-16
24 Stenogyne rotundifolia East Maui, Hana District, NE Haleakala, 1.5 mi NE of Paliku Cabin, Wai Anapanapa in margin of rain forest, in open sun; with Dubautia plantaginea, Cheirodendron, etc. Preserved_Specimen vining Henrickson, J.S. 3907 Maui BISH 1969-07-18
25 Stenogyne rotundifolia East Maui, Hana Forest Reserve, first bog SE of State Camp. Aspect: SE in open margin of bog, abnormal habitat. Vegetation: Upper elevation bog. Metrosideros, Deschampsia, Leptecophylla, Oreobolus, Carex echinata, C. montiseeka, C. alligata, Cheirodendron, Plantago pachyphylla, Dryopteris glabra var. hobdyana, Lobelia gloriamontis, Viola maviensis, Dichanthelium, Vaccinium, Argyroxiphium grayanum, Hypochoeris Preserved_Specimen Rare Pezzillo, Z. 31 Maui BISH 2022-09-24
26 Stenogyne rotundifolia Olinda, above moist forest Preserved_Specimen Bergman, H.F. Maui BISH 1927-12-29
27 Stenogyne rotundifolia East Maui, Haleakala, north of Kuiki beyond National Park boundary At outskirt of forest where windy; no. 12466 grew at lower elevation. Preserved_Specimen Flower narrower; perhaps very weak form or ecological Degener, O. 12465 Maui BISH 1939-08-09
28 Stenogyne rotundifolia Haleakala, Kaeanae Gap, Halehaku Preserved_Specimen flower white, lower limb entire Forbes, C.N. 1002 Maui BISH 1919-08-02
29 Stenogyne rotundifolia East Maui, Kalapawili Gasslands above trails to Lake Wainapanapa Preserved_Specimen Ritchie, R. Maui BISH 2004-08-03
30 Stenogyne rotundifolia Haleakal Preserved_Specimen Degener, O. 5439 Maui BISH 1927-08-10
31 Stenogyne rotundifolia East Maui, Haleakala Preserved_Specimen Mann, H. 403 Maui BISH 1864-01-01
32 Stenogyne rotundifolia Keanae Gap, Halehaku, Haleakala Preserved_Specimen Forbes, C.N. 1037 Maui BISH 1919-08-02
33 Stenogyne rotundifolia Kaeanae Gap, Halehaku, Haleakala Preserved_Specimen Forbes, C.N. 1029 Maui BISH 1919-08-03
34 Stenogyne rotundifolia East Maui, Ainahou Ridge, under Koolau Gap Preserved_Specimen Hobdy, R.W. 1130 Maui BISH 1981-09-05
35 Stenogyne rotundifolia E of Ukulele Preserved_Specimen Forbes, C.N. 980 Maui BISH 1919-07-30
36 Stenogyne rotundifolia East Maui, crater of Haleakala, Kaupo Gap Preserved_Specimen Forbes, C.N. 1114 Maui BISH 1919-04-10
37 Stenogyne rotundifolia East Maui, Hana District, Hanawi Natural Area Reserve, Hanawi Stream drainage basin Vegetation: Metrosideros, Cheirodendron, Coprosma, Vaccinium, Leptecophylla, Hydrangea, Smilax, Rubus, Diplopterygium, Dryopteris, Asplenium, Athyrium, Dubautia, Peperomia, Deschampsia, Cyperus, Lepisorus, Adenophorus, Sadleria, Elaphoglossum, Luzula Preserved_Specimen Vines, climbing adjacent trees, sometimes sprawling on ground; flowers white with pinkish tinge. Oppenheimer, H.L. 92116 Maui BISH 2021-09-15
38 Stenogyne rotundifolia Haleakala, Kaupo Trail Preserved_Specimen Tachikawa, S. 8 Maui BISH 1937-08-28
39 Stenogyne rotundifolia Haleakala, Kaeanai Gap Preserved_Specimen Forbes, C.N. 1024 Maui BISH 1917-08-03
40 Stenogyne rotundifolia Hana Distr., Tr 9(3), N slope of Haleakala, on ridge E of Kuhiwa Valley Mesic ohia forest with other native trees and a treefern and native shrub understory. Preserved_Specimen White flower. Higashino, P.K. 9129 Maui BISH 1980-06-12
41 Stenogyne rotundifolia Koolau Ahupuaa, East Maui, between east and west forks of Hanawi Stream. Transect MT, Station 2. Wet ohia forest with other native trees and a native shrub-matted fern understory. Preserved_Specimen Corollas white. Warshauer, F.R. 2530 Maui BISH 1980-05-16
42 Stenogyne rotundifolia East Maui, Puu Luau forests Preserved_Specimen Hobdy, R.W. 2072 Maui BISH 1984-04-28
43 Stenogyne rotundifolia East Maui, crater of Haleakala, Kaupo Gap In pocket, deep shade. Preserved_Specimen Forbes, C.N. 1112 Maui BISH 1919-08-10
44 Stenogyne rotundifolia Alaenui Ahupuaa, Southeast slope of Haleakala, along the south side of the upper southern section of Kipahulu Valley, E of ridge in SW Kipahulu Valley, Transect 17, Station 3. Mesic ohia forest with other native trees and a native shrub, matted-fern understory Preserved_Specimen Corollas white. Warshauer, F.R. 2843 Maui BISH 1980-07-20
45 Stenogyne rotundifolia Haleakala, Koolau Gap fog swept Preserved_Specimen Degener, O. 5440 Maui BISH 1927-08-17
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