Otiophora stolzii (Verdc.) Verdc.

Species

Angiosperms > Gentianales > Rubiaceae > Otiophora

Characteristics

Perennial tufted or cushion herb 10–22 cm. tall, with up to ± 25 simple or branched erect or suberect mostly bifariously pubescent stems from a woody rootstock.. Leaves paired; blades narrowly elliptic or linear-to elliptic-lanceolate, 0.7–2 cm. long, 1.3–8 mm. wide, subacute or obtuse at the apex, rounded or cuneate at the base, usually with revolute margins, pubescent with short bristly hairs above and with longer hairs on the midvein above and beneath or practically glabrous on both surfaces; petiole obsolete or up to 1 mm. long; stipules with 3–4 subulate fimbriae 0.5–2 mm. long from a short base.. Flowers in small terminal heads ± 1 cm. long and wide which in the fruiting stage elongate to 1–3 cm., or very few at the apices of the shoots.. Calyx-tube ovoid, 0.8 mm. long, densely pilose with white hairs; lobes 4–5, 1–2 foliaceous, 2–6 mm. long, 0.5–2 mm. wide, similar in shape and indumentum to the leaf-blades, rest setiform, up to 0.8 mm. long.. Corolla rose, pale blue, white, lilac or pink; buds with limb abruptly expanded into an ovoid head, glabrous or with a few bristly hairs at the apex; tube narrowly filiform, (3–)4.5–5.5 mm. long, 0.2 mm. wide, glabrous; lobes 4–5, lanceolate, 2.2–2.8 mm. long, 0.8–1 mm. wide, glabrous or with a few hairs outside at the apex.. Stamens 4–5, exserted for usually just over half the length of the corolla-lobes; filaments glabrous.. Style filiform, stigma bifid (rarely trifid), lobes filiform 1.5 mm. long; style and stigma together exserted for about the length of the corolla lobes.. Fruits elongate-ovoid, 2.2–2.5 mm. long, 1–1.5 mm. wide, spreading hairy.. Seeds brown, oblong, 1.5–1.9 mm. long, 0.9–1.1 mm. wide, granulate, slightly keeled dorsally and with an oblong depression around the hilum.
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Corolla white, pink, lilac or pale blue, tube 3.5–5.5 mm. long, filiform, glabrous, lobes 2–3 x 0.8–1 mm., lanceolate, sometimes a little hairy outside, filaments c. 1–2 mm. long, glabrous, anthers to c. 0.7 mm. long; style 5–6 mm. long, stigma lobes 1–1.5 mm. long; ovary c. 1 x 1 mm., densely hairy.
Leaves decussate; blades (7)10–20 x 1.3–6 mm., elliptic to linear-lanceolate, glabrous or sometimes a little hairy above; petioles subobsolete or to c. 1 mm. long; stipular sheath with 3 filiform setae to c. 1 mm. long.
Calyx: enlarged, foliaceous lobe(s) 1(2), 3–6 x 1–2 mm., elliptic to linear-lanceolate, often glabrous, setiform lobes less than 1 mm. long.
Inflorescence several-flowered, head-like, c. 1 cm. in diam. when in flower, somewhat elongated when in fruit.
Seed brown, c. 1.5–2 x 0.8–1.2 mm., oblong, dorsal side convex, slightly keeled, ventral side ± flat.
Perennial tufted or cushion-forming herb with up to c. 25 stems from a somewhat woody rootstock.
Stems 10–20 cm. long, erect or suberect, often unbranched, mostly with 2 rows of hairs.
Fruit yellowish brown to dark brown; mericarps 2–2.5 x 1–1.5 mm.
Bud with limb abruptly expanded into an ovoid head.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.22
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) -

Usage

Uses -
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

Otiophora stolzii world distribution map, present in Tanzania, United Republic of and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:758716-1
WFO ID wfo-0000261542
COL ID 6TCPB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Otiophora stolzii Otiophora parviflora var. stolzii