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Oldenlandia pumila
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Family:
RUBIACEAE
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Citation: Oldenlandia pumila (L.f.) DC., Prodr. 4: 425. 1830.
Hedyotis pumila L.f., Suppl. Pl. 119. 1781; Ramach. & V.J. Nair, Fl. Cannanore Dist. 218. 1988; M. Mohanan & Henry, Fl. Thiruvanthapuram 231. 1994; Dutta & Deb, Taxonomic Revision Hedyotis 141. 2004.
Oldenlandia crystallina Roxb., Fl. Ind. 1: 443. 1820; Hook. f., Fl. Brit. India 3: 65. 1880; Gamble, Fl. Pres. Madras 601(424). 1921.
Oldenlandia maheshwarii Rangaswami et al., Journ. Bombay Nat. Hist. Soc. 64: 390. 1967.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
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Description:
Annual or perennial herbs, from long and woody root stock, usually branched near the base, branches diffuse procumbent to prostrate; stem acutely angular, minutely dentate on the ribs. Leaves opposite, subsessile, 0.7-1.8 x 0.1-0.6 cm, elliptic or elliptic-lanceolate, acute, narrowed at base to petiole, membranous, scabrid above along margin and midrib below, often crystalline dots present in the lower surface; stipules 2-3 mm x 0.5-2 mm with 2-5 bristles. Flowers axillary, opposite or alternate, solitary or in 2-flowered cymes; peduncle 0.7-1 cm long; pedicel 1-1.5 cm long, distinctly ribbed, denticulate along ribs. Hypanthium ovoid, 0.3-1 mm long; calyx limb very short; lobes 4, rarely 5, 0.5-0.6 mm long ovate-lanceolate or triangular, acute, dentate at margin. Corolla about 2 mm long, white; tube 1.2-1.3 mm long, pubescent at throat; lobes 4, 0.5-0.8 x 0.5-0.6 mm, ovate, acute, incurved at apex. Stamens 4, included; filament very short, 0.2-0.3 mm long, adnate to sinus of corolla lobes; anthers 0.3-0.4 cm long, oblong. Ovary 0.3-0.7 mm long; ovules many on submedian oblong placenta, style exserted, 1-1.3 mm long; stigma bilobed, fleshy, 0.3-0.5 mm long, tufted hairy. Capsule ellipsoid or oblong-ovoid, 2-3 x 2.5-3 mm, didymous distinctly ribbed, glabrous; seeds 30-40, 0.7 x 0.1 mm, angular; exotesta strongly reticulate, brownish.
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Habit:
Herb
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Flowering & Fruiting:
April-May
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District(s):
Kannur, Thiruvananthapuram
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Medicinal:
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Habitat:
Wastelands
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Distribution:
Indo-Malesia
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Aquatic:
No
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Epiphyte(s):
No
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Saprophyte:
No
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Stem parasite:
No
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Root parasite:
No
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Flower colour(s):
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Weed:
No
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Monocot/Dicot:
Dicotyledonous Plants
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Exotic:
No
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Garden:
No
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Edible:
No
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Vegetable:
No
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Endemic to:
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IUCN status:
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Altitude:
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Localities:
Panoth
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