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Herbarium specimen. Copyright DERM

Canscora diffusa

Family

Gentianaceae

Botanical Name

Canscora diffusa (Vahl) R.Br. ex Roem. & Schult.

Roemer, J.J. & Schultes, J.A. (1818) Systema Vegetabilium Edn. 16 3: 301. Type: ?.

Synonyms

Gentiana diffusa Vahl, Symbolae Botanicae 3: 47(1794), Type: ?.

Stem

Annual erect herb, up to 35 (70) cm. tall, much branched. Stem slender, 4-angled, glabrous.

Leaves

Upper leaves sessile, the lower shortly petiolate; petiole up to 5 mm. long; lamina 1-3 (4) x 0.5-1.5 cm., ovate-elliptic to elliptic, acute at the apex, largely cuneate at the base, 3-5 nerved from the base, glabrous.

Flowers

Flowers very numerous, pink, mauve or white, in lax somewhat diffuse, leafy cymes; bracts 4-8 x 2-5 mm., sessile, ovate, acute; pedicels 5-15 mm. long, filiform, not winged. Calyx tube 4-5 mm. long, narrow, scarcely swollen towards the base, not winged but ribbed, tubular; teeth subulate; 1.5-2 mm. long. Corolla tube 5-6 mm. long; lobes 1.5-2 x 1-1.5 mm., unequal, ovate obtuse. Filaments 0.4-0.9 mm. long; anthers 0.25-0.35 x 0.25 mm., ellipsoid; sterile stamens 1-2. Ovary 0.3-0.4 mm. long, cylindric; style 1-1.5 mm. long, linear; stigmatic lobes, 0.4 mm. long, densely papillose.

Fruit

Capsule 4-5 mm. long, cylindric with a persistent calyx. Seeds, 0.2 mm. in diam., numerous; testa minutely faveolate.

Seedlings

Features not available.

Distribution and Ecology

Occurs in WA, NT, CYP and NEQ. Altitudinal range from near sea level to 700 m. Grows in damp areas and on creek banks in gallery forest and various types of woodland . Also from Africa, Asia and New Caledonia.

WA

X

NT

X

CYP

X

NEQ

X

Herb (herbaceous or woody, under 1 m tall)

X

RFK Code

4058