Overview

Comprehensive Description

General Description

Stem base prostrate, 15-30 cm, striate, densely hirsute. Petiole 0.5-1.5 cm; leaf blade ovate to ovate-lanceolate, 1.5-3 cm long, 1-1.3 cm wide, densely hispid, base rounded, margin undulate-serrate to crenate-serrate, apex acute. Spikes 2-3 cm long, 2 cm wide; floral leaves subsessile; bracts subcordate, 8-10 mm wide, abruptly acuminate, densely hirsute, margin hispid. Pedicel less than 1 mm. Calyx purple, tubular-campanulate, ca. 1 cm, hispid on veins; upper lip subcircular, ca. 6 mm long, 5 mm wide; lower lip ca. 3 mm wide, teeth lanceolate, spinescent. Corolla dark purple to blue purple, ca. 1.5 (-1.8) cm, glabrous, tube ca. 1 cm, base ca. 1.5 mm, gradually dilated to 4 mm wide at throat; upper lip oblong, ca. 5 mm long, 4 mm wide, keeled, concave, emarginate, hispid on back; lower lip ca. 5 mm long, 6 mm wide, with middle lobe subcircular, undulate-lobulate; lateral lobes oblong, minute, pendulous. Anterior stamens very long. Nutlets ovoid, ca. 1.5 mm long, 1 mm wide, slightly flattened abaxially, apex rounded, glabrous.
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Distribution

Sichuan, Xizang, Yunnan [India].
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Prunella hispida is occurring in Sichuan, Xizang, Yunnan of China, India.
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© Wen, Jun

Source: Plants of Tibet

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Physical Description

Morphology

Prunella hispida is here defined to plants conspicuously hispid throughout; corolla blue-purple, upper lip with a conspicuous hispid belt on back.
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Description

Stem base prostrate, 15-30 cm, striate, densely hirsute. Petiole 0.5-1.5 cm; leaf blade ovate to ovate-lanceolate, 1.5-3 × 1-1.3 cm, densely hispid, base rounded, margin undulate-serrate to crenate-serrate, apex acute. Spikes 2-3 × 2 cm; floral leaves subsessile; bracts subcordate, 8-10 mm wide, abruptly acuminate, densely hirsute, margin hispid. Pedicel less than 1 mm. Calyx purple, tubular-campanulate, ca. 1 cm, hispid on veins; upper lip subcircular, ca. 6 × 5 mm; lower lip ca. 3 mm wide, teeth lanceolate, spinescent. Corolla dark purple to blue purple, ca. 1.5(-1.8) cm, glabrous, tube ca. 1 cm, base ca. 1.5 mm, gradually dilated to 4 mm wide at throat; upper lip oblong, ca. 5 × 4 mm, keeled, concave, emarginate, hispid on back; lower lip ca. 5 × 6 mm, with middle lobe subcircular, undulate-lobulate; lateral lobes oblong, minute, pendulous. Anterior stamens very long. Nutlets ovoid, ca. 1.5 × 1 mm, slightly flattened abaxially, apex rounded, glabrous. Fl. and fr. Jun-Jan.
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Diagnostic Description

Synonym

Prunella stolonifera H. Léveillé & Giraudias; P. vulgaris Linnaeus var. hispida (Bentham) Bentham.
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Ecology

Habitat

Forest margins, grassy slopes; 1500-3800 m.
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Growing in forest margins, grassy slopes; 1500-3800 m.
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Source: Plants of Tibet

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Life History and Behavior

Cyclicity

Flowering from June to January; fruiting from June to January.
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Source: Plants of Tibet

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Molecular Biology and Genetics

Genetics

The chromosomal number of Prunella hispida is 2n = 28 (Astanova, 1981).
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