Flora of North America species comparison

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Sorbus sect. Sambucifoliae

Rosaceae subfam. amygdaloideae
Habit Shrubs or trees, sometimes subshrubs or herbs.
Leaves

alternate, sometimes opposite, simple, sometimes pinnately compound;

stipules present or absent.
Leaflets

not papillose abaxially nor glaucous adaxially.

Flowers

perianth and androecium epigynous.

torus absent or minute;

carpels 1–5(–8), distinct or +/- connate (Maleae), free or +/- adnate to hypanthium (many Maleae), styles distinct or +/- connate (some Maleae);

ovules (1 or)2(–5+), collateral, clustered, or biseriate.
Fruits

follicles aggregated or not, capsules, drupes aggregated or not, aggregated drupelets, pomes, or aggregated nutlets, rarely achenes or aggregated achenes;

styles persistent or deciduous, not elongate (elongate in Gillenieae).
Pomes

red, not glaucous;

sepals persistent;

carpels connate entire length, apex convex.

Winter

buds conic, shiny, not glaucous, glutinous, sparsely hairy, hairs primarily rufous.

x

= 8, 9, 15, 17.

Sorbus sect. Sambucifoliae

Rosaceae subfam. amygdaloideae
Distribution
from FNA
AK; e Asia (Japan, Russian Far East [Commander Islands, Kuril Islands, Sakhalin])
from FNA
HI; North America; Mexico; Central America; South America; Europe; Asia; Africa; Atlantic Islands (Madeira); Australia
Discussion

Species 1.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Cyanogenic glycosides are usually present in Amygdaloideae; sorbitol is present.

The name Amygdaloideae Arnott (1832) has priority over Spiraeoideae Arnott (1832), used by D. Potter et al. (2007), because Amygdalaceae (1820) is an earlier conserved name.

Tribes 9, genera 55, species ca. 1300 (9 tribes, 38 genera, 361 species, including 20 hybrids, in the flora)

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 443. FNA vol. 9, p. 345. Author: Luc Brouillet.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Sorbus > subg. Sorbus Rosaceae
Subordinate taxa
Name authority McAllister: Gen. Sorbus, 237. (2005) Arnott: Botany, 107. (1832)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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