Murdannia keisak

(Hasskarl) Handel-Mazzetti
Symb. Sin. 7: 1243. 1936.
WeedyIntroducedIllustrated
Basionym: Aneilema keisak Hasskarl Commelin. Ind., 32. 1870
Treatment appears in FNA Volume 22.

Herbs, annual, with long-trailing, decumbent shoots. Leaves: blade linear-oblong to linear-lanceolate, 1.5–7 × 0.2–1 cm, glabrous. Inflorescences terminal and in distal leaf axils; cymes 1-several, 1-flowered, solitary or fascicled. Flowers bisexual, radially symmetric, 1 cm wide; sepals 5–6 mm; petals purplish lilac or purple to pink or white, 5–8 mm; stamens 3; filaments bearded; staminodes 3. Capsules (4–)5–9 mm. Seeds 2–6 per locule, 1.6–3 mm, faintly ribbed.


Phenology: Flowering fall.
Habitat: Roadside ditches and swales, margins of lakes, creeks, rivers, swamps, bogs, swamp forest, and other aquatic habitats, often growing in water

Distribution

V22 92-distribution-map.jpg

Introduced; Ark., Fla., Ga., Ky., La., Md., Miss., N.C., Oreg., S.C., Tenn., Va., Wash., Europe, native, Asia.

Discussion

I agree with C. P. Dunn and R. R. Sharitz (1990) that this species is still expanding its range since its introduction early this century.

Lower Taxa

None.

... more about "Murdannia keisak"
Robert B. Faden +
(Hasskarl) Handel-Mazzetti +
Aneilema keisak +
Ark. +, Fla. +, Ga. +, Ky. +, La. +, Md. +, Miss. +, N.C. +, Oreg. +, S.C. +, Tenn. +, Va. +, Wash. +, Europe +, native +  and Asia. +
Roadside ditches and swales, margins of lakes, creeks, rivers, swamps, bogs, swamp forest, and other aquatic habitats, often growing in water +
Flowering fall. +
dunn1990a +
Weedy +, Introduced +  and Illustrated +
Murdannia keisak +
Murdannia +
species +