EcoFlora - Hypochaeris

Hypochaeris
Family: Asteraceae Paul Rothrock	FNA Gleason & Cronquist Resources David J. Bogler in Flora of North America (vol. 19, 20 and 21) Annuals, biennials, or perennials, 10-60 cm; taprooted and with caudices. Stems 1-15, erect, branched or unbranched, glabrate or coarsely hirsute. Leaves basal or basal and proximally cauline; petiolate or sessile; blades oblanceolate to oblong or elliptic, margins entire or dentate to pinnately lobed (faces glabrous or hirsute). Heads borne singly or in loose, cymiform, paniculiform. or corymbiform arrays. Peduncles slightly inflated distally, minutely bracteate. Calyculi 0 (or indistinguishable from phyllaries) . Involucres cylindric or campanulate, 5-20 mm diam. (12-25 mm in fruit). Phyllaries 20-30 in 3-4 series, unequal. linear-lanceolate, glabrous, glabrate, or coarsely hirsute. Receptacles flat, slightly pitted, paleate; paleae linear to subulate, scarious. Florets 20-100+; corollas usually yellow or orange, sometimes grayish green or reddish abaxially, rarely white, (not deliquescent). Cypselae monomorphic (all beaked) or dimorphic (outer truncate, inner beaked), usually brown to golden, bodies ellipsoid or fusiform, ribs 4-5 or 10. faces ± muricate, otherwise glabrous; pappi persistent, of 40-60+, white to tan bristles in 1 (all plumose) or in 2 series (outer barbellate, shorter than plumose inner). x = 4, 5. Hypochaeris is similar to and closely related to Leontodon, from which it is distinguished mainly by its paleate receptacles and unequal phyllaries. Plumose pappus bristles are characteristic of both Hypochaeris and Leontodon. Molecular studies indicate the South American species of Hypochaeris are a monophyletic group derived from European stock that has undergone a recent and rapid radiation in the New World (R. Samuel et al. 2003). Two South American species are found as weeds in the flora area. Vascular plants of NE US and adjacent Canada Similar to Leontodon, from which it differs primarily by having long, chaffy bracts on the receptacle; stem sometimes leafy below. 100, cosmop. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
Hypochaeris alba Map not Available Hypochaeris albiflora Map not Available Hypochaeris angustifolia Media not available Map not Available Hypochaeris arachnoidea Media not available Map not Available Hypochaeris arenaria Media not available Map not Available Hypochaeris brasiliensis Map not Available Hypochaeris chilensis Map not Available Hypochaeris chillensis Map not Available Hypochaeris chondrilloides Media not available Map not Available Hypochaeris ciliata Map not Available Hypochaeris claryi Media not available Map not Available Hypochaeris cretensis Map not Available Hypochaeris elata Map not Available Hypochaeris eriolaena Media not available Map not Available Hypochaeris gardneri Map not Available Hypochaeris glabra Map not Available Hypochaeris graminea Map not Available Hypochaeris incana Map not Available Hypochaeris lutea Map not Available Hypochaeris maculata Map not Available Hypochaeris microcephala Map not Available Hypochaeris oligocephala Media not available Map not Available Hypochaeris pampasica Media not available Map not Available Hypochaeris pinnatifida Map not Available Hypochaeris quitensis Map not Available Hypochaeris radicata Map not Available Hypochaeris robertia Map not Available Hypochaeris saldensis Media not available Map not Available Hypochaeris salzmanniana Media not available Map not Available Hypochaeris scorzonerae Media not available Map not Available Hypochaeris sessiliflora Map not Available Hypochaeris setosa Map not Available Hypochaeris sonchoides Map not Available Hypochaeris taraxacoides Map not Available Hypochaeris tenuifolia Media not available Map not Available Hypochaeris tweediei Map not Available Hypochaeris tweedyi Map not Available Hypochaeris uniflora Map not Available Hypochaeris ×balbisii Media not available Map not Available