Sp. Pl. 2: 687. 1753
Gen. Pl. ed. 5, 307. 1754
s Europe, Asia (Mediterranean region to c Asia).
A few species of Alcea are widely cultivated and both species in the flora area are escapes from cultivation. Various authors have treated some of these taxa within Althaea, but this disagrees with Linnaeus’s concepts of the two genera as quite distinct. The primary difference is that Alcea has a two-chambered mericarp (the upper chamber being empty and vestigial) and yellowish anthers, and Althaea has a one-chambered mericarp and purple or brownish-purple anthers. Current treatments consistently accept the two genera as distinct; see M. E. Uzunhisarcikii and M. Vural (2012) for a discussion of the two genera and their circumscriptions.
Alcea biennis Winterl occasionally is planted and rarely is found as an escape. It differs from the two species treated here by its white to pink corolla with a pale yellow to greenish center and by its generally more deeply lobed petals that are usually more separated and less overlapping. Its involucel is more than one-half as long as the calyx, sometimes equal in length, the sepals are conspicuously striate, the pedicel is 1–25 mm long, and the mericarps are conspicuously winged; its leaves are inconspicuously lobed or merely angled.
Species ca. 70 (2 in the flora).
|1||Leaf blades angled or shallowly lobed or rarely more deeply; flowers usually white, pink, red, or purple, rarely yellow, not drying greenish; involucellar bractlets 1/2+ calyx length.||Alcea rosea|
|1||Leaf blades lobed usually halfway or more to midrib, often figlike; flowers pale yellow, usually drying greenish; involucellar bractlets usually 1/2–2/3 calyx length.||Alcea rugosa|
|Author||Steven R. Hill +|
|Common name||Hollyhock +|
|Distribution||s Europe + and Asia (Mediterranean region to c Asia). +|
|Etymology||Greek alkea, a kind of mallow +|
|Illustration copyright||Flora of North America Association +|
|Illustrator||Linny Heagy +|
|Publication title||Sp. Pl. + and Gen. Pl. ed. +|
|Publication year||1753 + and 1754 +|
|Source xml||https://firstname.lastname@example.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V6/V6 406.xml +|
|Special status||Introduced +|
|Taxon family||Malvaceae +|
|Taxon name||Alcea +|
|Taxon parent||Malvaceae subfam. Malvoideae +|
|Taxon rank||genus +|
|Volume||Volume 6 +|