An illustrated flora of the An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian ed2illustratedflo02brit Year: 1913 Genus 6. APPLE FAMILY. i8. Crataegus pertomentosa Ashe. Prairie Thorn. Fig. 2352. Crataegus pcrtomcnlosa Ashe, Journ. E. Mitch. Soc. i&;: 70. Feb. 1900. Crataegus campeslris Britton, Bull. N. Y. Hot. Gard. 1:5: 449. March 1900. A small tree, sometimes 20° high, with nearly horizontal branches and a flattened crown.
An illustrated flora of the An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian ed2illustratedflo02brit Year: 1913 Genus 6. APPLE FAMILY. i8. Crataegus pertomentosa Ashe. Prairie Thorn. Fig. 2352. Crataegus pcrtomcnlosa Ashe, Journ. E. Mitch. Soc. i&;: 70. Feb. 1900. Crataegus campeslris Britton, Bull. N. Y. Hot. Gard. 1:5: 449. March 1900. A small tree, sometimes 20° high, with nearly horizontal branches and a flattened crown. Spines numerous, curved, l'-3*' long; leaves oblong to obovate, 14-25' long, i'-2i' wide, acute at the apex, abruptly cuneate to rounded at the base, finely and doubly serrate or lobed. slightly villous or glabrate above, villous beneath, particularly along the veins, vivid dark green, subcoria- ceous; corj'mbs and densely villous; flowers about 10' broad; stamens 10-15; styles and nutlets 2 or 3; calyx-lobes deeply serrate; fruit globular or nearly so, 4'-6' thick, cherry-red, villous when young. Rocky barrens. Iowa. Kansas and Missouri. May; fruit ripe September.
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