Steganotaenia hockii (C.Norman) C.Norman

Species

Angiosperms > Apiales > Apiaceae > Steganotaenia

Characteristics

Glabrous perennial herb, 0.2–0.6 m. tall, with a stout, woody rootstock, often flowering as secondary growth, an old burnt-off stem-base visible alongside the flowering shoot.. Stems wiry, purplish, terete, rather sparingly branched with branches diverging at ± 45°.. Leaves in young stage elliptical to subternate or trifoliolate with the lamina to ± 20 × 10 cm., distinctly petiolate, margins regularly rather finely dentate, the teeth mucronate-subaristate; at flowering time no leaves present, only purplish acute sheaths ± 3–10 mm. long.. Umbels on purplish 1–13 cm. peduncles; terminal umbel (3–)5–10-rayed, rays purplish, 2.5–9 cm., fertile; lateral umbels with the rays 1–2.5 cm., mostly ♂; involucral bracts 6–8, linear-acuminate, 4–8 mm.; partial umbels 5–14-flowered, pedicels 2–8 mm.; involucel of 3–6 bracteoles 2–4 mm. in length, similar to the bracts but smaller.. Calyx-teeth conspicuous, narrowly deltoid, acute, ± 0.5 mm.. Petals yellowish green, often flushed with to completely dark purple or blackish, oblong-elliptic, ± 1.5 mm.. Fruit compressed-obpyriform, 10–15 × 7–11 mm., at first green, becoming pinkish and finally brownish and papery when mature, deeply emarginate at the apex; stylopodia almost obsolete, disk broad with crenulate margins, immersed in the fruit apex; styles ± 1–1.5 mm., divergent, exceeding the apical notch.
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Umbels terminal and lateral; bracts few, 3–7 mm. long, linear, with long fine tips, inconspicuous and often missing, probably subcaducous; bracteoles 0–2, similar to the bracts. Partial umbels with 4–7 flowers on fine pedicels up to 6 mm. long, but usually shorter. Lateral umbels sometimes with male flowers only.
Fruit 14–15 × 9–11 mm., pyriform to obovate, strongly dorsally compressed; stylopodium depressed; styles c. 1 mm. long; lateral wings c. 2 mm. wide, well developed, tending to envelop the stylopodium; dorsal ribs filiform.
Leaves elliptic, (sometimes with large lobes on one side to subternate); lamina up to 20×10 cm., cuneate, on petioles c. 5 cm. long; margins finely dentate, the teeth with mucronate tips.
Stems up to 60 cm. long, nearly simple, more or less terete, with fine striations, leafless at the time of flowering.
Calyx teeth relatively conspicuous in flowers and young fruit; petals yellowish-green to greenish-brown.
Seeds occupying c. the upper 2/3 of the fruit, with the basal part sterile and narrower.
Developing fruit, rays and peduncles sometimes tinged with pale purple.
Perennial, glabrous suffrutex with a large underground woody caudex.
Carpophore unknown; vittae 0.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

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 -

Distribution

Steganotaenia hockii world distribution map, present in Zambia

Identifiers

LSID urn:lsid:ipni.org:names:849205-1
WFO ID wfo-0001068958
COL ID 4ZNK6
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Steganotaenia hockii Peucedanum hockii