Bidens forbesii

Sherff (1920)

This name is accepted

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

ko‘oko‘olau [kookoolau], ko‘olau [koolau]

Description

Key Characters:

Growth Form: Erect, suffrutescent perennial herbs 0.7-2 m tall

Stems:

Roots:

Leaves: Leaves pinnately compound or simple. Opposite. Blades lanceolate or ovate Margins serrate/dentate.

Flowers:

Fruit: Fruit a simple; dry; achene (cypsela); black in color; Seeds 1 per fruit; erect; embryo straight.

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Endemic

Island Status

Kaua'i Endemic
O'ahu Only found in cultivation
Lana'i Not in flora
Kaho'olawe Not in flora
Maui Not in flora
Hawai'i Not in flora

Dispersal Agents


Pollinators

Bibliography

Name Published In: Bot. Gaz. 70: 103 (1920)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details Disturbed dry coastal forest. W/Pandanus tectorius, Sphenomeris chinensis, Stachytarpheta, Leptecophylla tameiameiae, Casuarina equisetifolia, Bidens, Syzygium cumini, Euphorbia celastroides. Preserved_Specimen Herb 1m tall; bright yellow ray flowers; growing under SMD112. Deans, S.M. 113 Kauai BISH 2016-03-31
2 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details W/ Machaerina angustifolia, Dubautia spp., Cheirodendron spp., Sadleria sp., Broussaisia arguta, Dicranopteris linearis, Nertera granadensis, Gunnera kauaiensis, Cyrtandra spp., Peperomia spp., Piptur Preserved_Specimen Herb about 3 feet tall. Ray flowers yellow. Disc flowers brownish-yellow. Walsh, S. 673 Kauai BISH 2019-02-05
3 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details Metrosidero polymorpha-Dicranopteris linearis wet forest Anidesma platyphylla, Ilex anomala, Polyscias waialeale, Scaevola goudichaudiana, Bobea brevipes, Psychotria mariniana, Cyanea kahiliensis weeds; Psisium cattleianum Preserved_Specimen Shrub 2 meter ht with flowers Perlman, S. 23458 Kauai BISH 2013-05-21
4 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details Potted plant in holding area Preserved_Specimen Nagata, K.M. 2237 Oahu BISH 1981-03-02
5 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros polymorpha wet cliff Machaerina angustifolia, Kadua elatior, Kadua centranthoides, Erigeron Karvinskianus, Cyathea cooperi weeds: Psidium cattleianum. Preserved_Specimen Shrubs 2 meter ht with flowers. Perlman, S. 23577 Kauai BISH 2013-06-27
6 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details Southwest of Kapalaoa, area along main stream drainage, Lowland Degraded wet forest w/ Dicranopteris, Metrosideros, Pritchardia, Pittosporum, Scaevola mollis, S. gaudichaudiana,Psychotria marinianan, Kadua affinis, syzygium Sandwicensis, Broussaisia, Labordia hirtella, Cyrtandra, rubus rosifolius, Macaranga, Tetraplasandra cf. oahuensis, Wikstroemia oahuensis, Antidesma platyphyllum, Melicope cl Preserved_Specimen Singgle main stem, flws off lateral branches. flws yellow, seed bent to straight, some heads twisted, but most not, black w/ glabrous margins. Collected from several plants in immediate area. Stems square. Tangalin, N. 1896 Kauai BISH 2009-01-22
7 Bidens forbesii Locality redacted. Contact Bishop Museum Botany Department for details Metrosideros-Dicranopteris lowland wet shrubland with small pockets of mixed wet forest below ridgeline w/ Broussaisia arguta, Melicope feddei, Psychotria mariniana & P. wawrae, Kadua affinis, Antidesma platyphylla, Alyxia stellata, Syzygium sandwicensis, Dubautia laxa, Coprosma kauensis, Wikstroemia oa Preserved_Specimen Shrub, 3 m tall, flowering on lateral branches, occasional. Wood, K.R. 16504 Kauai BISH 2015-06-25