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Castlegar Hawthorn - Crataegus castlegarensis
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General Description
Shrubs 2–8 m. Stems shiny-brown becoming gray; thorns 13–25 mm long, straight to curved. Leaf blades ovate to obovate, 3–6 cm long, glandular-serrate; sometimes shallowly lobed, appressed-hairy above, sparsely hairy below. Inflorescence 5- to 25-flowered, sparsely long-hairy. Flowers: hypanthium sparsely hairy to glabrous externally; sepals 2–3 mm long, glandular-serrate; petals 5–8 mm long; stamens 10; styles 3 or 4. Pome 8–12 mm wide, black with scattered hairs at maturity (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX ).
Species Range
Montana Range
Range Descriptions
Native
Range Comments
BC to SK south to OR, UT and WY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX ).
Habitat
Ecology
POLLINATORS The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap:
Bombus vagans ,
Bombus auricomus ,
Bombus melanopygus ,
Bombus mixtus ,
Bombus nevadensis ,
Bombus pensylvanicus ,
Bombus bimaculatus ,
Bombus griseocollis , and
Bombus impatiens (Macior 1968, Thorp et al. 1983, Colla and Dumesh 2010).
Stewardship Responsibility
References
Literature Cited AboveLegend: Bombus (Hymenoptera, Apidae) queen foraging in relation to vernal pollination in Wisconsin. Ecology 49:20-25.
Additional ReferencesLegend: Do you know of a citation we're missing?
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