Eriocaulon dregei Hochst.

Species

Angiosperms > Poales > Eriocaulaceae > Eriocaulon

Characteristics

Robust perennial, the rosettes arising from a creeping and often branched rhizome, forming colonies. Leaves linear, (3-)10-25 cm long, up to 10 mm wide, the tips obtuse and terminating in a small, somewhat hardened knob. Scapes usually solitary, 5-23(-35) cm long, 0.8-1 mm in diameter, 5-to 7-ribbed, glabrous or with some short, white bristles between the ribs; sheaths usually shorter than the leaves, shortly obliquely split with a rounded limb which usually splits into 3 or more, spreading, papery lobes. Heads ± spherical, ±12 mm in diameter (mate heads smaller), dirty white; receptacle hemispherical, woolly hairy, most heads entirely or predominantly male. Involucral bracts shorter than the head, obovate-oblong, ±3 mm long, the outer obtuse and glabrous, the inner with broadly triangular tips with few white hairs, reflexing at maturity. Floral bracts oblanceolate, ±3 mm long, thin, spongy along the keel, flushed grey, densely white-hairy above, acute. Flowers 2-4 mm long. Male flowers: sepals 3, ±3 mm long, united below into a spathe, dark grey, 2 lobes slightly keeled, the third flat, rounded, all with white hairs at the tips; petals 3, shortly exerted from the sepals, unequal, with white hairs on the inner surface; anthers ±0.3 mm long, black. Female flowers: sepals 3, boat-like, 2-4 mm long, the keel spongy, sometimes expanded into a wing, grey, scarious, with white hairs along the margins; petals 3, narrowly oblanceolate-oblong, two 1.7-2.2 mm long, the third slightly larger, with white hairs on the inner surface. Seeds broadly ellipsoid, ±0.6 mm long, mid brown, smooth with a net-like surface pattern; ripe seeds rather rare.
More
Caespitose perennials forming colonies, compact hard rhizome covered with white soft tomentum of multicellular hairs. Leaves rosulate, linear-acuminate, up to 250 x 8 mm, but usually much smaller, apex acute, obtuse or drawn out into a long fine point. Capitula 1-3 per rosette on long thin peduncles, globose, c. 10 mm in diam., usually densely covered by a tomentum of hard, short, white setae; monoecious with male flowers predominating or some capitula entirely male; involucral bracts glabrous, usually reflexed, oblong, pale; floral bracts dark with white setae near apex; receptacle glabrous to villous. Female flower, sepals 3, black, boat shaped, 2-4 mm long, with a convex, occasionally toothed keel, apex acute, tufted with white setae, margin fimbriate; petals 3, spathulate, pale, densely setose and with a black gland; ovary 3-lobed. Male flower: sepals 3, dark, setose at apex; petals 3, unequal in size, white, setose above with a black gland; stamens 6, anthers black. Capsule 3-lobed; seeds smooth, testa with a rectangular network; ripe seeds rare.
Caespitose herb, hydrophyte, 55-170 mm high, forming colonies; rhizome compact, covered with white, multicellular hairs. Leaves rosulate, linear, up to 250 x 8 mm, apex obtuse, with a small hardened knob. Capitula globose, usually covered with hard white setae, with male flowers predominating or sometimes entirely male; involucral bracts glabrous, reflexed, oblong. Female flower: sepals 3, black, boot-shaped, with a convex or toothed keel, margins tufted with white hairs; petals 3, spathulate, densely setose, with black glands; ovary 3-lobed. Male flower: sepals 3, setose at apex; petals 3, unequal in size, white, setose above with black gland; stamens 6; anthers black. Flowering time Sept.-Apr. Fruit a trilobed capsule.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.06 - 0.17
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 7-9
Soil texture 7-8
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

Eriocaulon dregei world distribution map, present in South Africa

Conservation status

Eriocaulon dregei threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:335253-1
WFO ID wfo-0000410385
COL ID 3B2TF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eriocaulon dregei