Strobilanthes cyclus C.B.Clarke ex W.W.Sm.

Species

Angiosperms > Lamiales > Acanthaceae > Strobilanthes

Characteristics

Subshrubs 40-60 cm tall, isophyllous, whole plant with hispid trichomes. Stems erect or suberect, with whitish multicellular trichomes. Petiole 2-5 mm, densely pilose; leaf blade broadly ovate to suborbicular, 2.5-5.5 × 2-4.5 cm, abaxially pale green and hirsute along veins, adaxially dark green, densely hirsute, and with prominent linear cystoliths, secondary veins 4 or 5 on each side of midvein, base broadly cuneate to subrounded, margin crenate to sometimes subentire, apex rounded to acute. Inflorescences axillary or terminal, capitate spikes, 1-3 cm, shortly pedunculate; bracts narrowly oblong-elliptic, 10-12 × 5-6 mm, densely pilose; bracteoles oblong, ca. 7 × 2 mm, densely pilose on apical half, apex obtuse. Calyx ca. 7 mm, outside pilose, weakly 2-lipped; lobes linear-oblong; lower 2 lobes distinct to base; upper 3 lobes fused in their basal half, with central lobe slightly longer. Corolla blue, 2-2.5 cm, substraight, outside glabrous except for pubescence on lobes, inside glabrous except for trichomes retaining style; tube basally cylindric and ca. 2 mm wide for ca. 1.2 cm then gradually widened to ca. 1 cm at mouth; lobes suborbicular, ca. 5 mm in diam. Stamens 4; filaments glabrous, shorter pair ca. 3 mm and included, longer pair ca. 5 mm and exserted; anther thecae oblong, ca. 2.2 × 1.3 mm; pollen type 17. Ovary comose; style ca. 2 cm. Capsule ellipsoid, ca. 7 × 3.5 mm, pilose at tip, 2-seeded with basal retinacula sterile. Seeds ovate to suborbicular in outline, ca. 1 mm, flattened, pubescent; areola small but prominent. Fl. Aug.
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Growth form subshrub
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Sexuality hermaphrodite
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Mature height (meter) 0.4 - 0.6
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Hardiness (USDA) 8-12

Usage

Uses medicinal
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Cultivation

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Distribution

Strobilanthes cyclus world distribution map, present in China and Indonesia

Identifiers

LSID urn:lsid:ipni.org:names:55630-1
WFO ID wfo-0001045676
COL ID 532RC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Strobilanthes cyclus