Rhynchopsidium pumilum Dc.

Species

Angiosperms > Asterales > Asteraceae > Rhynchopsidium

Characteristics

Annual herb, 3-15, sometimes up to 25 cm high. Stems and branches erect or ascending, leafy, glabrous or tomentose and with stalked glands. Leaves alternate or sometimes opposite, spreading, slender, mid-ribbed, linear, 5-30 mm long, 0.4-2 mm wide, glandular with stalked glands and sometimes tomentose mainly above, acute-obtuse. Capitula solitary, pedunculate, terminal. Peduncles 2-20 mm long. Involucre urceolate or widely cyathiform, almost orbicular in outline, 2-10 mm wide. Involucral bracts 10-35, outer ovate, inner ovate-oblong with a spreading, brown, scarious apical limb, up to 5.5 mm long, up to 2.5 mm wide, acute-obtuse. Receptacle flat-convex, paleate. Paleae lanceolate, canaliculate and marginally flattened and often projected into two lateral teeth, otherwise entire, 3-5.5 mm long, 0.6-1.3 mm wide, dorsally sometimes sparsely gland-dotted, acute. Ray-florets 4-15. Tube cylindrical, 1.2-2 mm long, with mainly laterally scattered, subulate-triangular hairs. Lamina elliptic, 2-15 mm long, 1-6 mm wide, 4-10-veined. Style 1.8-3.4 mm long; style-branches 0.8-1.5 mm long. Achenes as in disc-florets, but more densely villose. Disc-florets 8-150, perfect. Corolla 2.5-3.8 mm long, 0.4-0.7 mm wide. Tube cylindrical, with scattered, subulate-triangular hairs on upper half. Limb cyathiform; corolla lobes 0.4-0.7 mm long, sometimes with a shortly stalked gland at apex. Style 2.5-3.8 mm long; style-branches 0.4-1.3 mm long, apically penicillate and truncate; stylopodium ± distinct. Anthers 1-2.2 mm long; tails c. 1/5 of the length of the anther. Achenes narrowly elliptic, 1.5-2.5 mm long, 0.3-0.6 mm wide, ± densely villose with erecto-patent, apically hooked hairs; pappus crownlike, of ± connate scales, up to 0.6 mm long.
More
Erect or spreading annual, up to 200 mm tall. Leaves linear, 5-30 mm long, glandular-hairy and sometimes cobwebby above. Flowerheads solitary on short, slender peduncles, radiate, yellow, 10-15(-20) mm diam., receptacle paleate, florets coarsely hairy around middle; involucre broadly urn-shaped to suborbicular.
Spreading, thinly cobwebby annual to 20 cm. Leaves linear, glandular-hairy. Flower heads radiate, solitary on short, slender peduncles, yellow.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.23
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 2-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

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 -

Images

Rhynchopsidium pumilum unspecified picture

Distribution

Rhynchopsidium pumilum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:241459-1
WFO ID wfo-0000001755
COL ID 4SS9T
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Relhania pumila Eclopes pumila Relhania laxa l'hér. Rhynchopsidium pedunculatum Rhynchopsidium pumilum Athanasia pumila Relhania pedunculata