Kohautia aspera (heyne ex Roth) Bremek.

Species

Angiosperms > Gentianales > Rubiaceae > Kohautia

Characteristics

Annual sparsely to densely branched herb 13–40 cm. tall, the stems scabrid with white papillae.. Leaves linear to narrowly elliptic, 1.5–3(–4.7) cm. long, 0.5–4 mm. wide, acute at the apex, narrowed to the base, glabrous above, papillate on midvein beneath and on the margins; stipule-sheath 0.7–1.5 mm. long, divided into 2 fimbriae 0.5–2 mm. long.. Inflorescences lax, the flowers mostly in pairs well spaced on the rhachis, entirely monochasial or branched at the base, trichotomous or dichasial; peduncle 1–4(–8) cm. long; pedicels 0.1–1.3(–2.6) cm. long; all parts papillate like the stems.. Calyx-tube ellipsoid, 1–1.2 mm. long, papillate; lobes linear-lanceolate, 0.7–2 mm. long, glabrous or minutely scabridulous.. Corolla white, brownish, greenish, pale blue or purple; tube narrowly cylindrical, sometimes curved, 2.5–4.7 mm. long, the widened part 0.7–2 mm. long, 0.5–0.8 mm. wide, mostly sparsely papillate outside with downwardly directed hairs inside near the base of the widened part; lobes oblong, 1–1.2 mm. long, 0.5–0.9 mm. wide.. Style ± 0.6 mm. long; stigma-lobes 1.2–1.4 mm. long.. Capsule oblong-subglobose, 2.5–3(–4) mm. tall, 2.5–4 mm. wide, ± smooth or papillate, the dehisced beak slightly raised.. Seeds pale brown, angular, 0.4–0.6 mm. long.
More
Corolla lobes above mostly white or blueish or pinkish white, bluish or mauve below, tube light green or greeny white, narrow part of tube outside with rounded minute papillae; tube slightly curved, altogether (2.1)2.3–3.1(3.4) mm. long, the dilated part ovoid-elliptic in shape, (0.8)1–1.3(1.5) x (0.4)0.5–0.8(0.9) mm., the narrow part (0.2)0.3–0.6(0.7) mm. wide; lobes (0.7)1–1.5(1.8) x (0.3)0.4–0.7(0.9) mm., ovate-triangular to ovate-oblong, not parted to the base, acute.
Leaves (23)28–39(47) x (0.5)0.7–2.5(4) mm., linear, linear-lanceolate to narrowly elliptic-lanceolate, margins and midrib beneath papillose, otherwise surfaces scabrid to glabrous, apex acute, narrowed to the base; stipular sheath (0.7)1–1.6(2) mm. long, stipular lobes (0.5)0.7–1.2(2.5) mm. long.
Annual herb, 100-300 mm tall. Flowers in subsessile or sessile pairs at nodes. Corolla tube (2.1-)2.3-3.1(-3.4) mm long, dilated part equalling narrow part in length. Flowers with lobes mostly white, bluish or pinkish white. above, bluish or mauve below, tube light green or greenish white.
Calyx tube (0.6)1–1.4(1.5) x (0.5)0.7–1.5(1.7) mm. ovoid to elliptic, densely covered with rounded papillae; lobes (0.8)1–1.4(1.7) mm. long and (0.2)0.3–0.5(0.6) mm., narrowly triangular to linear-lanceolate, margins and midrib scabrid with stiff minute papillae.
Inflorescences spike-like, many-flowered, mostly 2 subsessile flowers at a node, the flower in a fork of a dichasium distinctly pedicellate; peduncles 1–60 mm. long; pedicels (0)2–10(25) mm. long, all parts densely papillose like the stem.
Erect unbranched to sparsely branched annual herbs 10–30 cm. tall; stems ± densely papillose often reddish at base and below nodes.
Style and stigma as long as the narrow part of the tube, stigma lobes 0.7–1(1.4) mm. long, tips touching the anthers.
Capsules (2)2.2–3(3.4) x (2.8)3.4–4.3(4.7) mm., subglobose to globose, ± sparsely papillose.
Anthers ± oval, c. two thirds the length of the dilated tube; pollen 4–5-colporate.
Seeds light brown, c. 0.4–0.5 mm. long, angular-subconic.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.11 - 0.35
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses animal food
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Kohautia aspera world distribution map, present in Botswana, Djibouti, Eritrea, Ethiopia, Indonesia, Kenya, Mali, Mauritania, Namibia, Nigeria, Pakistan, Sudan, Senegal, Somalia, Chad, Tanzania, United Republic of, Uganda, Yemen, South Africa, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:754709-1
WFO ID wfo-0000221235
COL ID 3RC2L
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Oldenlandia aspera Oldenlandia leclercii Oldenlandia strumosa Kohautia aspera Kohautia strumosa Hedyotis aspera Hedyotis elongata Hedyotis strumosa