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Crataegus rigens

(Gadsden Hawthorn)

Common Names

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Common Names in English:

Gadsden Hawthorn

Description

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Genus Crataegus

Shrubs , subshrubs , or small trees , deciduous, rarely evergreen , armed , rarely unarmed ; buds ovoid or subglobose. Leaves simple , stipulate , venation craspedodromous , margin serrate and lobed or partite, rarely entire . Inflorescences corymbose , sometimes flowers solitary. Hypanthium campanulate . Sepals 5. Petals 5, white, rarely pinkish. Stamens 5-25; carpels 1-5, connate , but free apically. Ovary inferior or semi-inferior, with 2 ovules per locule, but one rudimentary . Fruit a pome, with persistent sepals at apex; carpels bony when mature , each locule with 1 seed; seed erect , cotyledons plano-convex .

At least 1000 species: N temperate regions , especially abundant in North America; 18 species (ten endemic) in China.Ku Tsue-chih, Stephen A. Spongberg "Crataegus". in Flora of China Vol. 9 Page 111. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Physical Description

Habit: Tree , Shrub

Biology

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Reproduction

Duration: Perennial

Taxonomy

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Unambiguous Synonyms

  1. Crataegus rigens Beadle

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: –

Similar Species

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Members of the genus Crataegus

There are approximately 2270 species in this genus. Here are just 100 of them:

C. 'Autumn Glory' · C. 'Corkscrew' · C. 'Praecox' · C. 'Red Italian' · C. abdita · C. aberrans · C. abjecta · C. aboriginum · C. abstrusa · C. academiae · C. acanea · C. acanthacolonensis · C. accincta · C. accinta · C. acerba · C. acerifolia · C. acerifolia var. sera · C. acuminata · C. acuticarpa · C. acutiloba · C. acutiserrata · C. admiranda · C. adunca · C. adusta · C. advena · C. aemula (Rome Hawthorn) · C. aestivalis (Apple Hawthorn) · C. aestivalis f. luculenta · C. aestivalis forma luculenta · C. aestivalis var. cerasoides · C. aestivalis var. dormonae · C. aestivalis var. lucida · C. aestivalis var. maloides · C. affinis · C. agaia · C. agrestina · C. aguilaris · C. alabamensis · C. alachuana · C. alachuaniformis · C. alacris · C. albanica · C. albanthera · C. albemarlensis · C. albicans · C. albicans var. tatnalliana · C. albicera · C. alemanniensis f. microalemanniensis · C. alemanniensis var. heterodonta · C. alemanniensis var. orientobaltica · C. alemanniensis var. subborealis · C. aliena · C. allecta · C. alleghaniensis · C. allemanniensis · C. alma · C. almaatensis · C. alnifolia · C. alnifolius · C. alnorum · C. alpestris · C. alpina · C. alpista · C. altaica · C. altrix · C. amabilis · C. amara · C. ambigens · C. ambigua (Russian Hawthorn) · C. ambigua ambigua · C. ambigua subsp. transcaspica · C. ambigua transcaspica · C. ambitiosa (Grand Rapids Hawthorn) · C. ambrosia · C. amelanchier · C. americana · C. amica · C. amicta · C. aminii · C. amoena · C. ampla · C. ampliata · C. amplifica · C. amygdaliformis · C. anamesa (Fort Bend Hawthorn) · C. ancisa (Mississippi Hawthorn) · C. angulata · C. angusta · C. angustata · C. angustifolia · C. angustisepala · C. anisophylla · C. annosa (Phoenix City Hawthorn) · C. anomala (Anomalous Hawthorn) · C. antheina · C. antimima · C. aperta · C. apiifolia · C. apiomorpha (Fort Sheridan Hawthorn) · C. apiomorpha f. paucispina

Bibliography

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More Info

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Notes

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Contributors

Identifiers

Footnotes

Last Revised: 2008-08-21