Wikstroemia uva-ursi var. kauaiensis

Skottsb. (1972)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Malvales Family: Thymelaeaceae Genus: Wikstroemia

‘ākia, kauhi

Description

Key Characters:

Growth Form: Shrub, 1.5 m tall, spreading, often prostrate.

Stems: Young branches densely reddish brown appressed pubescent, stems robust.

Roots:

Leaves: Leaves simple. Opposite. Blades elliptic, ovate to orbicular, or obovate, up to 4 cm long and 3 cm wide. Apex rounded to acute. Base cuneate to rounded, sometimes acute, rarely subcordate. Upper surfaces dark to grayish green; lower surfaces lighter, sometimes glaucous; blades thick and firm.Veins glabrous, with scattered hairs, or pilose, petioles glabrous or with scattered hairs. Margins entire. Pinnately veined. Petioles 1–2.5(–4) mm long. Stipules absent.

Flowers: Flowers in peduncles 1–6 mm long, hirsute, rachis clavate, conical to cylindrical, sometimes forked, 2–20(–50) mm long, hirsute. Flowers unisexual, on Maui sometimes bisexual (perfect), yellow, glabrous, with scattered hairs, or puberulent; pedicels 0.8–3 mm long, glabrous, with a few hairs, or pilose. Calyx tube of staminate flowers 5.5–9(–11.5) mm long, outer lobes 1.5–4.5 mm long, 1–3.8 mm wide, inner lobes 1.2–4 mm long, 1.2– 3.5 mm wide; Calyx tube of pistillate flowers 3.5–8 mm long, outer lobes 1.5–3.8 mm long, 1–3 mm wide, inner lobes 1.2–3.2mm long, 1.2–3 mm wide; Calyx tube of perfect flowers 5–9 mm long, outer lobes 1.6–4.5 mm long, 1.5–3.7 mm wide, inner lobes 1.3–4 mm long, 1.3–3.5 mm wide. Corolla (petals) absent. Stamens 8, the lower whorl included, the upper whorl sometimes shortly exserted. Ovary superior, 1-celled; ovules solitary and pendulous.

Fruit: Fruit bright red to dark crimson; ellipsoid; 8–11 mm long; 5–10 mm in diameter. fruit drupaceous. Seeds without endosperm.

Ploidy: 2n = 72*

Habitat: Rare or scattered on dry ridges; open hillsides; ledges; windswept headlands; clay flats; <i>‘a‘ā</i> lava; coastal; and low; dry; open; alien vegetation.

Elevation Range: 3–420(–670) m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Kaua'i Endemic

Dispersal Agents


Pollinators

Bibliography

Name Published In: Acta Regiae Soc. Sci. Litt. Gothob., Bot. 1: 132 (1972)

Other References

Wagner et al. 1990:1290 (K)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details steep bank Preserved_Specimen Cockrell, J. 19 Kauai BISH 1987-12-03
2 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details arid, barren hillside Preserved_Specimen Degener, O. 10367 Kauai BISH 1926-06-14
3 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details coastal rocks Preserved_Specimen Degener, O. 10362 Kauai BISH 1926-06-18
4 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details barren exposed slopes Preserved_Specimen Degener, O. 21532 Kauai BISH 1952-06-05
5 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details bank above road cut Preserved_Specimen Flynn, T.W. 1246 Kauai BISH 1985-10-03
6 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details barren exposed slopes Preserved_Specimen Degener, O. 21532 Kauai BISH 1952-06-05
7 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details dry lava, with Casuarina Preserved_Specimen Degener, O. 27127 Kauai BISH 1960-12-01
8 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details open ridge crest, exposed to wind, with Osteomeles, Bidens, Dodonaea, Verbena, Rhodomyrtus, Sphenomeris Preserved_Specimen Lau, J. 1307.3 Kauai BISH 1986-08-10
9 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details barren exposed slopes Preserved_Specimen Degener, O. 21532 Kauai BISH 1952-06-05
10 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details cliff; dryland scrub with wetter conditions in gullies Preserved_Specimen Stone, B.C. 845 Kauai BISH 1955-06-19
11 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details Windward side of northern part of ridge. Preserved_Specimen Corn, C. Kauai BISH 1977-07-20
12 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details dry ridge Preserved_Specimen Hosaka, E.Y. 1650 Kauai BISH 1936-11-02
13 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Faurie, A. 534 Kauai BISH 1909-12-01
14 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 488 Kauai BISH 1916-10-04
15 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Herbst, D.R. 1072 Kauai BISH 1968-04-21
16 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Fagerlind, F. 6476 Kauai BISH 1948-03-04
17 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details Preserved_Specimen Forbes, C.N. 502 Kauai BISH 1916-10-05
18 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details dry coastal shrubland with Dodonaea viscosa, Waltheria indica, Lantana, Leucaena, Stachytarpheta on rocky slopes Preserved_Specimen Lorence, D.H. 7625 Kauai BISH 1995-01-15
19 Wikstroemia uva-ursi var. kauaiensis Locality redacted. Contact Bishop Museum Botany Department for details bare embankment Preserved_Specimen Herbst, D.R. 1072 Kauai BISH 1968-04-21