Dendrolobium umbellatum (L.) Benth.

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/66287136/68121906

Conservation

LC - least concern

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: not threatened. Confidence: confident

Leguminosae, J. B. Gillett, R. M. Polhill & B. Verdcourt. Flora of Tropical East Africa. 1971

Morphology General Habit

Large spreading shrub to 3 m. with ± pendulous branches; stems reddish, striate, with upwardly directed soft white pilosity.

Morphology Leaves

Leaves 3-foliolate; stipules very early deciduous, oblong-acuminate, slightly oblique, initially connate, 9–10.5 mm. long, 1.5–2 mm. broad, finely striate, puberulent and pilose on the outer surface; stipels subulate to nearly deltoid, 1–1.5 mm. long, 0.5 mm. broad; petioles abundantly appressed pilose, 2–3 cm. long; leaf-rhachis similar, 0.8–1.3 cm. long; all leaflets dark and essentially glabrous above, paler and inconspicuously silky pilose beneath; terminal leaflets broadly elliptic to ovate or obovate, acute to obtuse at apex, rounded at base, 6–8 cm. long, the laterals somewhat obliquely elliptic, obtuse at base and apex, about two-thirds as long and half as wide as the terminal leaflet, 4–5.5 cm. wide.

Morphology Reproductive morphology Inflorescences

Inflorescences axillary, sessile to pedunculate, appearing umbellate, but actually highly congested racemose with ± whorled flowers; peduncles densely silky pilose, 4–10 mm. long; primary bracts ovate-acute, 2.5–4 mm. long, 1–2 mm. wide, somewhat puberulent and pilose, deciduous; bracteoles subtending calyx similar to the bracts, 2.5–3.5 mm. long, 1 mm. wide.

Morphology Reproductive morphology Flowers Calyx

Calyx silky pilose throughout, often deciduous before fruit matures; teeth of lower lobe lanceolate-acuminate, central tooth 4.5–6 mm. long, lateral teeth 4–5 mm. long; upper (slightly) bifid lobe ovate-acute, 4–5.5 mm. long.

Morphology Reproductive morphology Flowers Corolla

Corolla white to bright yellow; standard almost orbicular, retuse, with a short (± 2.5 mm.) claw, 9.5–11.5 mm. long; wings slenderly oblong, clawed for one-fifth their length, obtuse at apex, slightly auricled, 9.5– 11 mm. long, 1.5–2 mm. wide; keel-petals ± scythe-shaped, slightly auricled, clawed for ± one-third their length, 10–13.5 mm. long, 3–4 mm. wide.

Morphology Reproductive morphology Flowers Androecium Stamens Filaments

Vexillary stamen-filament fused for most of its length.

Morphology Reproductive morphology Fruits

Fruit essentially sessile, 1–6-articled, slighly indented between the articles on the upper suture, more deeply so on the lower one, isthmi between the articles 1.5–4 mm. wide; articles essentially straight above, broadly curved below, rather densely appressed pilose, becoming less conspicuously so, 5.5–9.5 mm. long, 4.5– 7.5 mm. wide.

Morphology Reproductive morphology Seeds

Seed elliptic-reniform, 4.5–5 mm. long, 3 mm. wide, reddish brown to black.

Figures

Fig. 65/4, p. 453.

Habitat

Sandy beaches near the sea, usually just above the high water mark

Distribution

K7 P T3 T6 Z Madagascar, Mascarene Is., tropical Asia, Malesia, the Philippines, New Guinea and northern Australia