Oligomeris dregeana Müll.Arg.

Species

Angiosperms > Brassicales > Resedaceae > Oligomeris

Characteristics

Perennial with a woody base and sub-erect to decumbent, herbaceous to slightly woody stems up to 50 cm long, stems more or less distinctly longitudinally ribbed, ribs often minutely tuberculate, older parts covered with a very thin brownish-yellow bark. Leaves subulate-linear to narrowly spathulate-linear (3-)6-15(-25) x (0.3-)0.5-1(-1.3) mm, margins and lower surface irregularly minutely tuberculate, scattered or densely crowded especially on short axillary shoots, often somewhat fleshy. Stipules subulate, 0.2-0.5 mm long. Inflorescence a spike-like raceme, (2-)4-8(-16) cm long. Bracts longer than the sepals, subulatelinear to very narrowly triangular, (2-)2.4-7(-15) x 0.4-0.8 mm with 2 stipuloid appendages about 0.2 mm long on each side near the base, margin and lower surface often minutely tuberculate. Sepals 5, narrowly linear-lanceolate to very narrowly triangular, (1.4-)1.6-2.0(-2.4) x 0.4-0.6 mm, margins and lower surface minutely tuberculate. Petals 2, sometimes almost completely abortive, white, lanceolate-linear to linear or spathulate-linear, (1.2-)1.5-2(-2.4) x (0.2-)0.5-0.6 mm. Stamens usually 3, sometimes 4 or rarely reduced to 2; filaments 1.2-2.4 mm long; anthers about 0.4 mm. Capsule 3.5-6.5 mm long and 2.0-3.8 mm in diameter, ovoid-oblong. Seeds reniform, about 1 mm long, black, glossy.
More
Erect, often decumbent-ascending, perennial herb, 0.1-0.27 m high; glabrous to scabrid, branching, internodes tubular. Leaves crowded at nodes, linear to spathulate. Inflorescences elongating racemes, up to 100 mm long; peduncles strongly ribbed. Flowers white; bracts longer than flowers. Petals 2, as long as sepals, deciduous. Ovary ovoid, ± 3 mm long; carpels 4 or 5, not completely fused at top, with 4 or 5 apical, conical teeth bearing stigmatic surfaces; ovules 7-9 per placenta, in 2(3) rows. Fruit an ovoid-oblong capsule, membranous, gaping at top. Seeds many, ovoid-globular, black; testa glossy.
Perennial herb. Stems decumbent or procumbent, up to 0.5 m long. Leaves scattered or densely crowded; blade subulate-linear to narrowly spathulate, 6-15 x 0.5-1.0 mm. Flowers: bracts subtending adult flowers longer than flowers; petals ± as long as sepals, white; Jul.-Jun.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.27
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-3
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses medicinal
Edible -
Therapeutic use Divination (unspecified), Funeral (unspecified)
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

Oligomeris dregeana world distribution map, present in Lesotho, Namibia, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:715402-1
WFO ID wfo-0001130676
COL ID 49697
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dipetalia dregeana Oligomeris dregeana Reseda dregeana Resedella dregeana