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Montana Field Guide

Montana Field Guides

English Hawthorn - Crataegus monogyna
Other Names:  Common Hawthorn, Single-seeded Hawthorn

Non-native Species

Global Rank: G5
State Rank: SNA

Agency Status
MNPS Threat Rank:
C-value: 1

External Links

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).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)



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