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Hedyotis cyanantha
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Family:
RUBIACEAE
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Citation: Hedyotis cyanantha Kurz, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 45: 136. 1876; Dutta & Deb, Taxonomic Revision Hedyotis 167. 2004; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 418. 2009.
Hedyotis caerulea Wight & Arn., Prodr. 412. 1834, nom. illeg.; Hook. f., Fl. Brit. India 3: 60. 1880; Manilal & Sivar., Fl. Calicut 141. 1982; Ansari, Fl. Kasaragod Div. 191. 1985; Babu, Fl. Malappuram Dist. 329. 1990.
Oldenlandia caerulea (Wight & Arn.) Gamble, Fl. Pres. Madras 597(421). 1921, nom. illeg.
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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:
Erect annual herba, branching below; root-stock stout, branching; stem 6-18 cm long, stiff, terete, setaceous. Leaves simple, sessile, opposite or verticillate, 1-1.5 x 0.2 cm, linear, aristate at apex, coriaceous, punctate, rigid, revolute at margin, setaceous above and along midrib below; stipules 2-2.2 x 1-2 mm, white, membranous, with 3-4 bristles, 3-3.5 mm long. Inflorescence axillary or terminal capitate cymes with 3-4 flowers. Flowers sessile or shortly pedicelled, 4-5 mm long; pedicel up to 1 mm long, setaceous. Hypanthium globose, 0.7-1 mm long. Calyx limb 0.5-1 mm long, setaceous; lobes 4, 1-1.5 x 0.1-0.12 mm, triangular-lanceolate, aristate at apex. Corolla 3-4 mm long, blue; tube 1-1.5 mm long, glabrous inside; lobes 4, 2.5-3 x 1 mm, lanceolate to linear-lanceolate, 3 nerved, minute puberulous inside, incurved at apex. Stamens 4, exserted, longer than corolla lobes; filaments 3-3.5 mm long, attached near sinus of corolla lobes, ciliate at base; anthers oblong, 0.5-0.8 mm long. Ovary 0.5-0.8 mm long, ovules many; style slender, 4-5 mm long; stigma bifid, 0.5-1 mm long, linear, feathery. Capsules globose or ovoid, 2-4 x 1.5-2 mm, notched at apex, subcoriaceous, ribbed, punctate setaceous, with rigid calyx teeth, loculicidal on crown only; seeds 40-70, 0.1-0.15 mm, triangular, narrowly winged, reticulate, very often orbicular.
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Habit:
Herb
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Flowering & Fruiting:
October-June
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District(s):
Kasaragode, Malappuram, Kozhikkode, Wayanad, Kannur
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Medicinal:
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Habitat:
Lateritic slopes and grasslands
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Distribution:
Peninsular India and Sri Lanka
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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):
Blue
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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:
Chandanathode, Bela, Taliparamba, Parassanikkadavu
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