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Androsace occidentalis Pursh

Western rockjasmine (en), Androsace allongée (fr)

Species

Angiosperms > Ericales > Primulaceae > Androsace

Characteristics

Plants annual, inconspicuous, not mat-forming. Leaves in single rosette; petiole obscure; blade lanceolate, oblanceolate, or spatulate, 5-30 × 4-9 mm, base obscurely narrowing to stem, margins with simple hairs, surfaces puberulent, hairs simple. Scapes 1-15, 2-10 cm, glabrescent to puberulent. Inflorescences 3-15-flowered; involucral bracts lanceolate to elliptic or ovate, relatively broad. Pedicels erect to arcuate, slender, unequal, 0.3-3 cm. Flowers: calyx broadly campanulate, ridged, 3-5 mm, lobes erect, broadly lanceolate, apex acute to obtuse; corolla tube equaling or shorter than calyx, limb ca. 3 mm diam. Capsules ± equaling calyx, 3-5 mm. 2n = 20.
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Lvs oblanceolate to oblong or oblong-obovate, to 3 cm, entire to denticulate, grayish-puberulent with simple hairs; scapes 1–many, pubescent with branched hairs; umbels 3–10-fld, the bracts 3–8 mm, resembling the lvs in shape, less than 4 times as long as wide; cal 4–5 mm, carinate below each lobe, the expanded, greenish, lance-ovate, pubescent lobes about equaling the nearly glabrous tube; cor white, scarcely exceeding the cal-tube, the limb 2.5 mm wide; 2n=20. Dry, usually sandy soil; Ind. to Man., w. to B.C. and Ariz. Apr.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.02 - 0.1
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.1
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity 3-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses medicinal
Edible -
Therapeutic use Gynecological Aid (unspecified), Pediatric Aid (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 365
Germination temperacture (C°) 10 - 12
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Androsace occidentalis unspecified picture

Distribution

Androsace occidentalis world distribution map, present in Canada, Mexico, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:13161-2
WFO ID wfo-0000534712
COL ID DVFX
BDTFX ID 78587
INPN ID 162349
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Androsace occidentalis Androsace arizonica Androsace simplex Primula occidentalis Primula arizonica Amadea occidentalis Androsace occidentalis f. simplex Androsace platysepala Aretia occidentalis Androsace occidentalis var. arizonica Androsace occidentalis var. simplex Androsace occidentalis subsp. arizonica Androsace occidentalis var. occidentalis
WorldFloraDB 2024