Lindernia crustacea

(Linnaeus) F. Mueller
Syst. Census Austral. Pl., 97. 1882/1883.
Common names: Malaysian false-pimpernel
Introduced
Basionym: Capraria crustacea Linnaeus Mant. Pl. 1: 87. 1767
Synonyms: Torenia crustacea (Linnaeus) Chamisso & Schlechtendal
Treatment appears in FNA Volume 17. Treatment on page 356. Mentioned on page 353, 354, 357.

Annuals. Stems erect to ascending or prostrate, not matted, usually rooting at proximal nodes, 2–26 cm. Leaves cauline, thin; petiole present or absent; blade ovate, elliptic, or suborbicular, distal sometimes lanceolate to nearly linear, 2–28 × 0.5–17 mm, pinnately veined or distal sometimes 1-nerved, not leathery, margins serrate, serrulate, crenate, or coarsely toothed, rarely nearly entire; distal well developed or much reduced. Pedicels 2–36 mm, 1/2–4 times subtending leaves. Flowers: sepals 1.8–5.9 mm, connate 1/2–3/4 lengths; corolla tube and adaxial lip lavender, pink, or blue to white, abaxial lobes white with purple to blue markings, tube 3–9 mm, adaxial lip 3/4–1 times abaxial; stamens 4; staminodes absent. Capsules broadly ellipsoid to globular, 1.4–5.5 × 1.7–3.5 mm. Seeds cylindric, ellipsoid, or irregularly oblong, not ribbed. 2n = 42 (India).


Phenology: Flowering year-round.
Habitat: Wet ditches and depressions, moist to wet disturbed habitats.
Elevation: 0–100 m.

Distribution

Introduced; Ala., Ark., Fla., Ga., La., Miss., N.C., S.C., Tex., Asia (China, India, Japan, Malaysia), Africa, Pacific Islands (Philippines), Australia, introduced also in Mexico, West Indies, Central America, South America, Asia (Indonesia), elsewhere in Pacific Islands.

Discussion

Lindernia crustacea is common and weedy, as well as used medicinally, in much of the Eastern Hemisphere. It is difficult to assess the native range of the species; here the author follows E. Fischer et al. (2013). The first collection in the flora area was in 1916 in Lee County, Florida (Standley 390, MO). The species is apparently continuing to spread in the southeastern United States.

Selected References

None.

Lower Taxa

None.

... more about "Lindernia crustacea"
Deborah Q. Lewis +
(Linnaeus) F. Mueller +
Capraria crustacea +
Malaysian false-pimpernel +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tex. +, Asia (China +, India +, Japan +, Malaysia) +, Africa +, Pacific Islands (Philippines) +, Australia +, introduced also in Mexico +, West Indies +, Central America +, South America +, Asia (Indonesia) +  and elsewhere in Pacific Islands. +
0–100 m. +
Wet ditches and depressions, moist to wet disturbed habitats. +
Flowering year-round. +
Syst. Census Austral. Pl., +
Introduced +
Torenia crustacea +
Lindernia crustacea +
Lindernia +
species +