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Polygala youngii Exell

Species

Angiosperms > Fabales > Polygalaceae > Polygala

Characteristics

Flowers yellowish, pink or blue, pedicels 1.5 mm. long, in terminal racemes 4–15 cm. long with glabrous rhachis, caducous bracts 1 mm. long and bracteoles 0.5 mm. long.
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Posterior sepal 3 mm. long; wing sepals 5–6 x 3–3.5 mm., oblong-elliptic, glabrous; anterior sepals 2 mm. long, free.
Seed 1.5–1.6 x 0.8–0.9 mm., cylindric, with white, silky hairs; caruncular appendages scarcely developed.
Annual herb 40–60 cm. tall with very slender, crisped-pubescent, pilose or nearly glabrous stems.
Upper petals 5–6 x 2.5 mm., obliquely oblong; carina 3.5 mm. long, crest 5 mm. long.
Capsule 3 x 2 mm., obovate in outline, marginal wing very narrow, sparsely ciliate.
Leaves 10–12 x 0.5 cm., linear, with needle-like tips.
Stamens 6 fertile.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.4 - 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

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) 30 - 60
Germination temperacture (C°) 15 - 18
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Polygala youngii world distribution map, present in Angola and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:692603-1
WFO ID wfo-0000488012
COL ID 4L8L7
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Polygala youngii
WorldFloraDB 2024