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Montana Field Guide

Montana Field Guides

English Hawthorn - Crataegus monogyna

Exotic Species (not native to Montana)

Global Rank: G5
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

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General Description
Shrub or small tree 5–8 m high. Stems reddish at first, becoming gray; thorns 1–2 cm long, straight. Leaf blades ovate, 2–4 cm long, serrate, deeply 3- to 7-lobed, glabrous to sparsely hairy. Inflorescence 10- to 20-flowered, pubescent. Flowers: hypanthium pubescent; sepals 1–2 mm long; petals 5–7 mm long; stamens 20; style 1. Pome 8–10 mm wide, red, glabrous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Escaped from cultivation throughout most of temperate N. America and collected in Missoula County; native to Europe (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat

References
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Citation for data on this website:
English Hawthorn — Crataegus monogyna.  Montana Field Guide.  .  Retrieved on , from