Pentzia calva S.Moore

Species

Angiosperms > Asterales > Asteraceae > Pentzia

Characteristics

Compact, rounded, sparsely leafy, aromatic shrublet, 0.15-0.6 m tall; stems spreading to usually erect, well-branched, branches divaricate, younger branches white-or grey-felted; cortex rough. Leaves alternate, regularly arranged along upper parts of branches, suberect to spreading, 2.5-24.0 x ±1.5-6.0 mm, pinnately 3-to 7(9)-lobed, lower half to one-third usually narrowed into petiole-like base 0.5-9.0 mm long; densely white-or grey-felted on both surfaces when young, sometimes glabrescent and often canescent, lobes ovate to narrowly oblong, 0.5-3.0(-5.0) x ±0.5-1.0 mm, lateral lobes spreading semi-obliquely to obliquely or sometimes horizontally; sheath not differentiated from lamina, only uppermost leaves with 1 to 3 pairs of secondary basal lobes, remnants of leaf ± persistent. Capitula discoid, homogamous, solitary or often with 1 or 2 additional capitula from leaf axils below; peduncle 2-28 mm long, sparsely to densely felted, greenish to light brown. Involucre hemispherical to broadly campanulate, 2.0-5.0 x 3.5-8.0 mm, erect to spreading at rim; involucre bracts 4-or 5-seriate, median resin canal absent, margins and apices broadly scarious, membranous apices of inner bracts 0.7-2.0 mm long; outer bracts lanceolate to ovate, 1.5-2.5 mm long; middle bracts ovate to broadly ovate, 2.0-3.0 mm long; inner bracts ovate to broadly elliptic, (2.0)3.0-5.0 mm long, very slightly incurved apically; innermost bracts oblanceolate to obovate, 2.0-3.5 mm long. Receptacle convex, epaleate, alveolate. Florets bisexual, numerous. Corolla 1.5-3.0 mm long, yellow, with glandular trichomes; tube 1.0-1.5(2.0) mm long; limb capuliform to campanulate, ±0.5-1.0 mm long (excluding lobes), 5-lobed; lobes triangular, spreading, ±0.5 mm long. Anthers ±0.6-1.2 mm long including apical appendages, slightly sagittate at base; apical appendages ovate to broadly ovate, obtuse. Style terete with thickened base; branches ±0.5 mm long, truncate, papillate apically-dorsally. Pappus absent (cypselar wall tissue rarely produced as rudimentary teeth at apices of some cypselae). Cypselas oblong, ±1.5 x 0.5 mm, 5-ribbed, glandular trichomes between ribs, mucilaginous when soaked.
More
Dwarf shrub, up to 0.6 m high; aromatic, spreading to erect. Leaves alternate, petiolate, upper leaves sessile; blade pinnately 3-7(9)-lobed, lobes ovate to narrowly oblong, densely white-or grey-felted on both surfaces. Heads discoid, solitary or often with 1 or 2 additional heads from leaf axils below; peduncle up to 28 mm long. Involucre erect to spreading at rim; involucral bracts 4-or 5-seriate, margins and apices broadly membranous. Receptacle epaleate. Flowers: disc florets only; corolla 5-lobed, yellow; Oct.-Jun. Fruit with cypsela oblong, 5-ribbed, glandular between ribs. Pappus absent.
Life form -
Growth form shrub
Growth support free-standing
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Sexuality hermaphrodite
Pollination -
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Mature width (meter) -
Mature height (meter) 0.38 - 0.6
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Environment

Light -
Soil humidity 1-3
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Hardiness (USDA) 8-12

Usage

Uses medicinal
Edible -
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Cultivation

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Distribution

Pentzia calva world distribution map, present in Botswana, Namibia, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:236818-1
WFO ID wfo-0000061287
COL ID 76PJW
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pentzia calva Pentzia microcephala