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Dalbergia densa var. densa

Family

Fabaceae

Botanical Name

Dalbergia densa Benth. var. densa

Prain, D. (1904) Annals of the Royal Botanic Garden, Calcutta 10(1): 73. Type: ?.

Synonyms

Dalbergia densa Benth., Hooker's London Journal of Botany 2: 217(1843), Type: New Guinea, Mr. Hinds; Tobie Island, Mr. Barclay.

Stem

Usually grows as a vine but can flower and fruit as a shrub 1-4 m tall. Vine stem diameters to 8 cm recorded. Subrhytidome layer khaki, yellow or orange-yellow in colour.

Leaves

About 12-20 or more leaflets per compound leaf. Leaflet blades about 15-45 x 8-18 mm, leaflet stalks about 1-3 mm long. Both the upper and lower leaflet blade surfaces sparsely clothed in short pale-coloured hairs. Stipules oblong, about 1 mm long, obtuse at the apex, clothed in white or silver prostrate hairs. Branches modified to form tendrils.

Flowers

Flowers about 7 mm diam., each flower subtended by two hairy bracts. Calyx about 2-3 mm long, hairy on the outer surface. Calyx tube about 1.5 mm long, lobes about 1-1.2 mm long. Corolla about 4-5 mm long, glabrous. Stamens 10, filaments fused to form a tube open on one side, fused section about 2.7 mm long, free part of the filaments about 1.5 mm long. Ovary hairy, stalked, ovary + stalk about 4 mm long. Style glabrous. Ovules 2 to 4.

Fruit

Fruits flat, about 4-7 x 1-3 cm, +/- elliptic in outline, wing-like. Seeds 1 or 2 per fruit, each seed about 14-17 x 5-6 mm. Radicle about 1 mm long.

Seedlings

First leaf compound, pinnate, with 5 leaflets, terminal leaflet present, lateral leaflets opposite. Leaflet blades about 9-11 x 4-5 mm, oblong to elliptic, apex obtuse to retuse, base obtuse to cuneate. Leaflet stalks about 0.5-1 mm long. At the tenth leaf stage: leaf pinnate with about 23-33 leaflets. Leaflet blades oblong-elliptic, base shallowly cordate to obtuse, apex obtuse but with a very small downward pointing tip. Leaflet blades sericeous with both the upper and lower surfaces clothed in short, pale-coloured hairs. Stipules hairy, about 1.5-3 mm long.

Distribution and Ecology

Occurs in CYP and NEQ. Altitudinal range from near sea level to 400 m. Grows in monsoon forest and vine thickets. Also occurs in New Guinea.

Natural History

Not noted as having any grazing significance. Hacker (1990).

CYP

X

NEQ

X

Shrub (woody or herbaceous, 1-6 m tall)

X

Vine

X

RFK Code

2164