Purshia tridentata (Pursh) Dc.

Antelope bitterbrush (en)

Species

Angiosperms > Rosales > Rosaceae > Purshia

Characteristics

Shrubs, evergreen or partially summer-winter-deciduous, 2–25(–40) dm. Stems: young-stem internodes 4–12 mm, sparsely to densely arachnoid-villous, ± hirtellous, or glabrous, stipitate-glandular or not; short-shoot spurs simple or branched, 5–20(–60) × 1.5–2 mm. Leaves: blade of 1 or 2 types: (1) persistent, dark green adaxially, obovate to spatulate, 4–9 × (1–)3–6 mm, irregularly lobed in distal 1/3, lobes 3(–5), lobes entire, ± terete, central lobe deflexed, often apiculate, 2 lateral ascending, margins strongly revolute, abaxial surface arachnoid-villous, midvein glabrous, glabrate, or hirtellous, adaxial glabrous, sometimes arachnoid-villous or hirtellous, often glandular-punctate along margins; (2) winter deciduous, green-gray adaxially, flabelliform, 6–15+ × 3–7+ mm, margins weakly revolute, usually 3-toothed, sometimes 3-lobed, distally, abaxial surface arachnoid-villous to arachnoid-tomentose, veins ± glabrate, adaxial hirtellous and ± arachnoid villous, sometimes sessile or stipitate-glandular along margins. Pedicels 0.2–2.5 mm. Flowers: hypanthium obconic, 2.5–5 × 1.5–3 mm, 3.5–6 mm diam. in fruit, pubescent-sericeous, sessile or stipitate-glandular; petals usually lemon-to cream-yellow, sometimes nearly white, obovate-spatulate, 4–7+ mm; stamens 17–35; carpels 1 or 2. Achenes broadly obovoid-fusiform (circular in cross section or flattened on common side when paired), 7–12 × 3.5–5.2 mm, 15–22-veined, persistent style 5–7(–10) mm, densely hirtellous.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.35 - 1.8
Root system -
Rooting depth (meter) 1.75
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer frankia
Photosynthetic pathway c3

Environment

Light 5-6
Soil humidity 2-3
Soil texture -
Soil acidity 4-9
Soil nutriment -
Hardiness (USDA) 6-8

Usage

Uses animal food bee plant dye environmental use fiber forage fuel invertebrate food medicinal
Edible -
Therapeutic use Tuberculosis Remedy (bark), Venereal Aid (bark), Antihemorrhagic (bark), Other (bark), Emetic (fruit), Antihemorrhagic (fruit), Laxative (fruit), Ceremonial Medicine (leaf), Disinfectant (leaf), Emetic (leaf), Hunting Medicine (leaf), Analgesic (leaf), Cathartic (leaf), Cold Remedy (leaf), Dermatological Aid (leaf), Liver Aid (leaf), Pulmonary Aid (leaf), Tonic (leaf), Venereal Aid (leaf), Anthelmintic (leaf), Gastrointestinal Aid (leaf), Laxative (leaf), Other (leaf), Cough Medicine (root), Pulmonary Aid (root), Respiratory Aid (root), Febrifuge (root), Gynecological Aid (root), Venereal Aid (root), Cathartic (seed), Analgesic (tuber), Tuberculosis Remedy (tuber), Gynecological Aid (unspecified), Misc. Disease Remedy (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Purshia tridentata leaf picture by Sandy Rowley (cc-by-sa)
Purshia tridentata leaf picture by Bob Ben (cc-by-sa)
Purshia tridentata leaf picture by Elizabeth Shakespear (cc-by-sa)

Flower

Purshia tridentata flower picture by Al Toth (cc-by-sa)
Purshia tridentata flower picture by Pierre Ettori (cc-by-sa)
Purshia tridentata flower picture by christine Lesca Maillard (cc-by-sa)

Fruit

Purshia tridentata fruit picture by Draper Jonathan Draper (cc-by-sa)

Distribution

Purshia tridentata world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:1113564-2
WFO ID wfo-0001014259
COL ID 4QKRX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Kunzia tridentata Tigarea tridentata Purshia tridentata var. tridentata Purshia tridentata