Leucospermum harpagonatum Rourke

Species

Angiosperms > Proteales > Proteaceae > Leucospermum

Characteristics

Prostrate sprawling shrublet forming dense mats 1-3 m in diam., 100-150 mm tall, with trailing branches radiating horizontally along ground, arising from a single main stem. Flowering branches usually produced-at perimeter of mat, 3-5 mm in diam., puberulous initially, soon glabrous, reddish flushed, bearing numerous pedunculate axillary inflorescences. Leaves secund, linear to narrowly oblong, 55-110 x 2-10 mm, tapering in petiolar region; apex entire, obtuse to rounded with a single amber callosity; lamina broadly concave on upper surface, margins slightly incurved. Inflorescence 8-10(12)-flowered, turbinate, 28-30 mm in diam.; pedunculate, peduncle 10-20 mm long. Involucre prominent, 3-seriate; composed of 25-35 ovate to broadly ovate, densely sericeous, cartilaginous involucral bracts, 6-8 x 2-4 mm; imbricate but apices patent, acuminate. Receptacle obconic-flattened, 3-5 mm diam. Floral bracts tightly clasping perianth, broadly ovate, acute, 5 x 6-7 mm, very densely sericeous. Perianth cream to pale carmine, very strongly adaxially curved, utriculose, 10-15 mm long; tube prominently inflated, 9-10 x 5-6 mm distally, narrowed and glabrous proximally, densely lanate distally; claws 4-5 mm long, abruptly narrowed above tube, strongly deflexed on opening, densely lanate, especially along margins, carmine in live state; limbs lanceolate-acute, 3 mm long, recurved on opening, densely villous. Anthers 4, sessile, 1 mm long. Style 20-25 mm long, strongly adaxially cygneous, tapering terminally, upper half retrorsely barbed, cream or reddish in live state, tapering to a narrow neck below pollen presenter. Pollen presenter inwardly curved, conic-acute 1.5 mm long with a distinct proximal corona. Stigmatic groove terminal. Ovary not differentiated from style, minutely sericeous, 0.5 mm long. Hypogynous scales linear-acute 2 mm long, yellow. Fruit a minutely puberulous, cylindric, greyish-white achene, 8 x 5 mm, broadly emarginate at apex.
More
Like L. hamatum but leaves linear-oblong, channelled, with 1 apical tooth, flower heads with 7-12 flowers, style 20-25 mm long.
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Growth form shrub
Growth support free-standing
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Mature height (meter) 0.1 - 0.15
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Soil humidity 1-3
Soil texture 5-6
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Cultivation

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Images

Leucospermum harpagonatum unspecified picture

Distribution

Leucospermum harpagonatum world distribution map, present in South Africa

Conservation status

Leucospermum harpagonatum threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:980933-1
WFO ID wfo-0001220042
COL ID 6PTPX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Leucospermum harpagonatum