img

Blainvillea gayana

Cass. (1827)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Asterales Family: Asteraceae Genus: Blainvillea

Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Pollinators

Bibliography

Name Published In: Dict. Sci. Nat., ed. 2. 47: 90 (1827)

Other References

Oppenheimer & Pezzillo 2024:56 (NEWNAT/EM, WM, H)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Blainvillea gayana Kawaihae Prosopis forest. Preserved_Specimen Herb, ca. 30cm tall. Whistler, W.A. Hawaii BISH 2008-04-11
2 Blainvillea gayana West Maui, Lahaina, Hahakea Gulch. On dry gulch slope. Preserved_Specimen Eerect plants 40-60 cm tall. Hobdy, R.W. 4291 Maui BISH 2008-05-09
3 Blainvillea gayana Just inland from Lahaina on land to be developed as Leialii Growing beside a road. Preserved_Specimen Herb with white florets.. Whistler, W.A. Maui BISH 2008-02-12
4 Blainvillea gayana East Maui, Wailuku District, Kamaole ahu.. Northing: 2292042; Easting: 770621. On intermittent stream banks; in pasture and degraded remnant Erythrina dry forest. Preserved_Specimen Naturalized shrubs to 1.75 m tall, erect or sprawling. Oppenheimer, H.L. 21115 Maui BISH 2011-02-25
5 Blainvillea gayana South Kohala, Puako, mauka of Queen Kaahumanu Highway. Dry savanna grassland/kiawe, most plentiful in gullies. Preserved_Specimen Scabrous subshrubs 50-100 cm tall; flowers discoid. Erect, taprooted annuals with a sturdy, 4-5 mm thick stem, glabrate below, becoming scabrous and pubescent above. Leaves opposite, rhombic; petioles 0.8-1.2 cm long, scabrous and pubescent; blades 5-7 cm long x 2-3.5 cm wide, 3-veined from base, scabrous and pubescent above, pubescent below, margins serrate, olive green. Inflorescences corymbiform with a single long-peduncled capitula arising from the center of each branch division, forming loosely open, few-flowered corymbs at branch tips. Peduncles 2-4 cm long x 0.5 mm wide, scabrous and pubescent. Capitulae 6-7 mm long x 6-7 mm wide, discoid. Involucral bracts in 2 rows 5-6 mm long x 2-2.5 mm wide, rounded to obtusely pointed at tips, 3-5-veined with scabrous hairs. Outer bracts with divergent tips that are darker and hairier. Disk florets 8-11, surrounded by conduplicate, scarious palea that have ca 5 aristate points at the end of each vein. Florets tiny, 4-lobed, white, smooth and apparently functionally male. Cypselas 4 mm long x 1-1.5 mm wide, laterally compressed with a raised medial ridge, dark brown with shieldlike, pointed shoulders, glabrous. Pappus consisting of 2 stout, 1 mm long pronglike awns with clear, antrorse, aristate hairs and one much shorter similar center awn. Hobdy, R.W. 4354 Hawaii BISH 2014-04-10
6 Blainvillea gayana West Maui, Lahaina, Hahakea Gulch stream bottom. Growing by roadside in gulch bottom. Preserved_Specimen Plants erect, 100-120 cm tall. All plants were in this dried out condition. Hobdy, R.W. 4292 Maui BISH 2008-05-09
Back to Top