Hedythyrsus thamnoideus (K.Schum.) Bremek.

Species

Angiosperms > Gentianales > Rubiaceae > Hedythyrsus

Characteristics

Subshrub 0.2–2 m. tall; stems drying blackish, ± glabrous or with only a few lines of hairs on young parts; internodes short.. Leaf-blades narrowly elliptic to lanceolate, discolourous, green above (blackish green when dry), whitish or silvery beneath, 0.8–2(–2.5) cm. long, 2.5–8 mm. wide, acute at the apex, cuneate at the base, revolute at the margins, glabrous or with a few hairs on the margins and main nerve beneath; petiole short, scarcely 1(–1.5) mm. long; stipule-sheath hairy, 1–3 mm. long, with 3–7 fimbriae 1–4 mm. long, often ciliate.. Inflorescences (1–)1.5–2.5 cm. wide; peduncle 0–1.5 cm. long, sometimes bifariously hairy; pedicels 0–1 mm. long.. Calyx-tube ovoid, 0.5–1.5 mm. long, glabrous, pubescent or with a few hairs at top between the lobes; lobes 1.3–2.5 mm. long, glabrous or with some hairs on margin at the base.. Corolla white, pink or pale lilac; tube 1.8–4 mm. long, longest in the short-styled flowers, glabrous or hairy outside; lobes oblong-ovate, 1.5–3 mm. long, 1–1.3 mm. wide.. Style 1.7–2.8 mm. long in short-styled flowers, 3–5.8 mm. long in long-styled flowers; stigma-lobes 0.2–0.5 mm. long.. Capsule 1–1.2 mm. tall excluding the 1–1.6 mm. long beak, 1.8–2 mm. wide.. Seeds chestnut brown, 1–1.2 mm. long.. Fig. 33.
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Leaf blades discolourous, green above (blackish-green when dry), whitish or silvery beneath, 0.8–2(2.5) cm. x 2.5–8 mm., narrowly elliptic to lanceolate, acute at the apex, cuneate at the base, revolute at the margins, glabrous or with a few hairs on the margins and main nerve beneath; petiole short, scarcely 1(-1.5) mm. long; stipule sheath hairy, 1–3 mm. long, with 3–7 fimbriae 1–4 mm. long, often ciliate.
Calyx tube 0.5–1.5 mm. long, ovoid, glabrous, pubescent or with a few hairs at top between the lobes; lobes 1.3–2.5 mm. long, glabrous or with some hairs on margin at the base.
Corolla white, pink or pale lilac; tube 1.8–4 mm. long, longest in the short-styled flowers, glabrous or hairy outside; lobes 1.5–3 x 1–1.3 mm., oblong-ovate.
Inflorescences (1)1.5–2.5 cm. wide, ± less than 30-flowered; peduncle 0–1.5 cm. long, sometimes bifariously hairy; pedicels 0–1 mm. long.
Subshrub 0.15–2 m. tall; stems drying blackish, ± glabrous or with only a few lines of hairs on young pans; internodes short.
Style 1.7–2.8 mm. long in short-styled flowers, 3–5.8 mm. long in long-styled flowers; stigma lobes 0.2–0.5 mm. long.
Capsule 1–1.2 mm. tall excluding the 1–1.6 mm. long beak, 1.8–2 mm. wide.
Seeds chestnut brown, 1–1.2 mm. long.
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Growth form shrub
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Sexuality hermaphrodite
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Mature height (meter) 0.15 - 2.0
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Environment

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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Hedythyrsus thamnoideus world distribution map, present in Burkina Faso, Rwanda, Tanzania, United Republic of, and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:753014-1
WFO ID wfo-0000981035
COL ID 3K3BJ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Oldenlandia thamnoidea Hedythyrsus thamnoideus