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Cerastium glomeratum

Thuill. (1799)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-CoreEudicot Order: Caryophyllales Family: Caryophyllaceae Genus: Cerastium

cerastium

Description

Key Characters:

Growth Form: Plants annual.

Stems: Stems erect or ascending, branched, 5–45 cm, hairy, glandular at least distally, rarely eglandular, small axillary tufts of leaves absent.

Roots: Taproots slender.

Leaves: Leaves simple. Opposite. Leaves not marcescent, ± sessile. Blade 5–20(–30) × 2–8(–15) mm, basal with blade oblanceolate or obovate, narrowed proximally, sometimes spatulate; cauline with blade broadly ovate or elliptic–ovate. Apex apiculate, covered with spreading, white, long hairs. Surfaces covered with spreading, white, long hairs. Margins entire. Sessile. Stipules absent.

Flowers: Flowers in inflorescences 3–50–flowered, aggregated into dense, cymose clusters or in more–open dichasia. bracts: proximal herbaceous, distal lanceolate, apex acute, with long, mainly eglandular hairs; pedicels erect to spreading, often arcuate distally, 0.1–5 mm, shorter than capsule, glandular–pubescent. Flowers bisexual (perfect), actinomorphic. Sepals green, rarely dark–red tipped, lanceolate, 4–5 mm, margins narrow, apex very acute, usually with glandular hairs as well as long white hairs usually extending beyond apex. Petals oblanceolate, 3–5 mm, rarely absent, usually shorter than sepals, apex deeply 2–fid. Stamens 10. Ovary superior; styles 5.

Fruit: Capsules narrowly cylindric; curved; 7–10 mm; teeth 10; erect; margins convolute. Seeds pale brown; 0.5–0.6 mm; finely tuberculate; seed coat inflated or not.

Ploidy: 2n = 72

Habitat: Arable land; waste places; roadsides.

Elevation Range: 0–1800 m.

Historical Distribution

Accepted Subtaxa (in Hawai'i) (1)

Cerastium glomeratum subsp. glomeratum

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kuaihelani (Midway Atoll) Naturalized
Kaua'i Not in flora
O'ahu Naturalized
Molokai Naturalized
Lana'i Not in flora
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Wind
Other Animals

Vegetative Reproduction

Pollinators

Bibliography

Name Published In: Fl. Env. Paris, ed. 2: 226 (1799)

Other References

Starr et al. 2004:21 (NEWNAT/EM); Starr & Starr 2017:4 (Mi); Faccenda 2024b:126 (O); Faccenda, Arthur, et al. 2025:166 (Mo, H)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Cerastium glomeratum Waianae Mts., Honouliuli, Puu Kaua, secondary ridge E of peak wind-swept rocky ridge Preserved_Specimen Chock, A.K. 152 Oahu BISH 1950-02-26
2 Cerastium glomeratum East Maui, Haleakala National Park, in gravel under benches in temp Greenhouse. NEW PARK RECORD Preserved_Specimen Welton, P. 2261 Maui BISH 2009-04-30
3 Cerastium glomeratum Preserved_Specimen Gaudichaud-Beaupré, C. 166 BISH 1836-09-01
4 Cerastium glomeratum Waianae Mts., Mokuleaia Forest Reserve Preserved_Specimen Onouye, R. Oahu BISH 1934-02-04
5 Cerastium glomeratum Hamakua District, Kalaniai Road about 1 km from Hwy 19. Roadside, sunny, moist Preserved_Specimen Faccenda, K. 2345 Hawaii BISH 2022-03-06
6 Cerastium glomeratum East Maui, Makawao District, Olinda In lawn. Associated vegetation: Pennisetum clandestinum, Eucalyptus spp. Preserved_Specimen Starr, F. 202021 Maui BISH 2002-02-02
7 Cerastium glomeratum East Maui, Makawao Scattered in lawn, basalt soil. Associated vegetation: Pennisetum clandestinum. Preserved_Specimen Starr, F. 203081 Maui BISH 2002-03-08
8 Cerastium glomeratum Pu'u Ka'ala Summit, roadside, moist, cool, from gravel in open area Preserved_Specimen Faccenda, K. 2205 Oahu BISH 2022-01-21
9 Cerastium glomeratum Kalaupapa, top of trail restoration site in area near cultural sign mixed mesic forest; Metrosideros polymorpha, Leptecophylla tameiameiae, Wikstroemia oahuensis, Carex wahuensis, Nephrolepis cordifolia Preserved_Specimen Wysong, M.L. 873 Molokai BISH 2006-02-03
10 Cerastium glomeratum Hale'iwa, intersection of Kawailoa Dr. and Kamehameha Hwy Shady, moist roadside Preserved_Specimen Faccenda, K. 2878 Oahu BISH 2022-12-22
11 Cerastium glomeratum Summit of Kaala along road near the FAA facility with Plantago, Holcus lanatus and Epilobium. Preserved_Specimen Nagata, K.M. 2058 Oahu BISH 1980-04-12
12 Cerastium glomeratum Kalae golf course fairways Preserved_Specimen Hobdy, R.W. 2365 Molokai BISH 1985-04-22
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