Asclepias praemorsa Schltr.

Species

Angiosperms > Gentianales > Apocynaceae > Asclepias

Characteristics

Stem probably solitary, simple, 1 1/4-2 ft. high, slightly puberulous on the upper part, glabrous below, with internodes 2-4 in. long; leaves subsessile, spreading or upcurved, 2 1/2-5 in. long, 3/4-1 lin. broad, linear, acute, truncate or auriculate at the base, with revolute margins, scaberulous; umbels 3-5, lateral and terminal, racemose, or occasionally solitary and terminal in weak plants, 4-5-flowered; peduncles 1/3-1 in. long, puberulous; bracts about 1 1/2 lin. long, subulate, very deciduous; pedicels 6-7 lin. long, puberulous; sepals about 1 1/2 lin. long, 2/3 lin. broad, ovate-lanceolate, acute, pubescent; corolla-lobes 2-3 1/2 lin. long, 1 1/2-2 1/4 lin. broad, elliptic-ovate, acute or subobtuse, glabrous on both sides, apparently white or greenish-white; corona-lobes arising 1/2 lin. up the staminal column, much overtopping the style-apex, erect, 1 1/4-1 1/2 lin. long, 1-1 1/4 lin. broad across the side, cucullate or complicate-cucullate, the top margins shortly produced into erect obtuse teeth at the inner apical margins, subtruncate and slightly recurved or concavely notched in front of the teeth and then convexly ascending to the dorsal obtuse apex, no tooth within; anther-appendages subpetaloid, connivent-erect, overtopping the corona-lobes, 3/4-1 1/4 lin. long, 2/3-3/4 lin. broad, oblong or elliptic-oblong, rounded at the apex, white.
More
Perennial, geophytic herb, 240-560 mm high. Leaves linear, 30-115 x 1-3 mm, base minutely auriculate. Inflorescences 4-10(-14)-flowered; peduncles 3-18 mm long. Flowers white, cream-coloured to pale green with mauve base. Corolla: lobes 5.5-7.5 x 3.5-4.8 mm, margins scabrous; staminal column 2-4 mm high, stipitate by 0.8 mm long. Corona: lobes 2.2-3.8 mm high, 1.8-2.8 mm wide; upper proximal ends blunt, upper margin truncate, overtopping style-stigma-head by 0.5-0.8 mm. Anther: appendage oblong or tongue-like, 1.7-2.5 mm long, connivent on style-stigma-head. Flowering time Dec.-Apr.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.73 - 0.59
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 5-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 90
Germination temperacture (C°) 10 - 23
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Asclepias praemorsa unspecified picture

Distribution

Asclepias praemorsa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:94552-1
WFO ID wfo-0000551652
COL ID H6M6
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Asclepias praemorsa Gomphocarpus truncatus Lagarinthus truncatus