Oxalis debilis

Kunth (1822)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Oxalidales Family: Oxalidaceae Genus: Oxalis

‘ihi pehu [ihi pehu], pink wood sorrel

Description

Key Characters:

Growth Form: Acaulescent perennial herbs from an ovoid bulb 2–2.5 cm long, covered with brownish ovate scales, maturing into masses of brown ovoid bulbils 3–6 mm in diameter in the axils of the old scales.

Stems: Leaves grow from an underground ovoid bulb 2–2.5 cm long, covered with brownish ovate scales, maturing into masses of brown ovoid bulbils 3–6 mm in diameter in the axils of the old scales.

Roots: Taprooted.

Leaves: Leaves compound (trifoliate). Alternate. Leaflets broadly obcordate, 1.5–4.5 cm long, 2–6.5 cm wide, leaflets often drooping. Surfaces glabrous or sparsely pubescent, both surfaces covered with minute reddish tubercles. Leaflet margins cleft at apex but otherwise entire. Petioles slender, flexuous, ascending, 10–25 cm long, ± villous. Stipules small, membranous, adnate to petioles.

Flowers: Flowers 2–12 in umbellate cymes; peduncles up to 35 cm long, usually villous, bracts several, ovate-lanceolate, 2.5–3 mm long. Flowers bisexual (perfect), actinomorphic. Calyx of 5 sepals, imbricate, shortly connate, oblong, 3.5–5(–6) mm long. Corolla of 5 petals, pinkish purple, spatulate, 11–20 mm long, apex obtuse to truncate. Stamens 10, in 2(3) series, 5 short and 5 longer, longer ones sometimes with a dorsal tube; filaments connate at base; anthers dithecal, opening by longitudinal slits. Ovary superior, (3–)5-carpellate, with as many cells; ovules 3–8 per cell, in 1–2 rows.

Fruit: Fruit not seen.

Ploidy: 2n = 14; 22; 28; 30

Habitat: Usually in relatively wet; shaded sites.

Elevation Range: 10–850 m.

Historical Distribution

Accepted Subtaxa (in Hawai'i) (1)

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

Kuaihelani (Midway Atoll) Naturalized
Kaua'i Naturalized
O'ahu Naturalized
Molokai Naturalized
Lana'i Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Vegetative Reproduction

Pollinators

Bibliography

Name Published In: F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth, Nov. Gen. Sp. 5: 236 (1822)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Recorded By Record Number Island Source Date