EcoFlora - Alyssum

Alyssum
Family: Brassicaceae Max Licher	FNA Gleason & Cronquist Resources Ihsan A. Al-Shehbaz in Flora of North America (vol. 7) Annuals or perennials [biennials, subshrubs]; not scapose; trichomes sessile, stellate, with 2-6 minute basal branches (branches as many as 3-25), rays branched or not, sometimes trichomes simple [lepidote]. Stems erect, ascending, or decumbent, unbranched or branched. Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate or sessile, blade margins entire; cauline petiolate or sessile, blade (base cuneate or attenuate), margins entire. Racemes (few- to several-flowered, sometimes corymbose or paniculate). Fruiting pedicels ascending, divaricate, or reflexed, slender or stout. Flowers: sepals ovate or oblong, lateral pair not saccate; petals yellow or white [rarely pink], suborbicular, spatulate, oblanceolate, linear-oblanceolate, or, obovate (apex obtuse or emarginate); stamens tetradynamous; filaments not winged, uni- or bilaterally winged, appendaged, or toothed; anthers ovate or oblong; nectar glands (4), 1 on each side of lateral stamen, median glands absent; (placentation apical or parietal). Fruits sessile, ovate-oblong, obovate, or elliptic [obcordate, rarely globose], usually strongly flattened, latiseptate, rarely inflated; valves each not veined (smooth), pubescent or glabrous; replum (visible), rounded; septum complete, (membranous, translucent, veinless); ovules 1 or 2 [or 4-8] per ovary; stigma capitate. Seeds biseriate or aseriate, flattened, winged or not, orbicular or suborbicular to ovoid; seed coat (smooth or minutely reticulate), mucilaginous or not when wetted; cotyledons accumbent or incumbent. Vascular plants of NE US and adjacent Canada Pet yellow, varying to white, gradually narrowed to the base; short filaments flanked by a single gland on each side; anthers short and blunt; ovary short, compressed; ovules 1-8 per locule; style slender but short; fr elliptic to orbicular, flattened parallel to the septum, each locule with a few seeds; herbs with entire or serrate lvs; ±pubescent with stellate hairs. 170, mainly Eurasia. 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.
Species within checklist: WILD3830 - 1 \|\| << 1 - 50 taxa >> Alyssum alpestre Map not Available Alyssum altaicum Map not Available Alyssum alyssoides Map not Available Alyssum americanum Map not Available Alyssum antiatlanticum Media not available Map not Available Alyssum arenarium Map not Available Alyssum argenteum Map not Available Alyssum atlanticum Media not available Map not Available Alyssum bornmuelleri Map not Available Alyssum borzaeanum Media not available Map not Available Alyssum bulbotrichum Map not Available Alyssum condensatum Media not available Map not Available Alyssum corsicum Map not Available Alyssum cuneifolium Map not Available Alyssum damascenum Media not available Map not Available Alyssum dasycarpum Map not Available Alyssum desertorum Map not Available Alyssum diffusum Media not available Map not Available Alyssum doerfleri Map not Available Alyssum embergeri Media not available Map not Available Alyssum erosulum Media not available Map not Available Alyssum flahaultianum Media not available Map not Available Alyssum graecum Media not available Map not Available Alyssum granatense Map not Available Alyssum harputicum Map not Available Alyssum hirsutum Media not available Map not Available Alyssum homalocarpum Media not available Map not Available Alyssum idaeum Map not Available Alyssum lenense Map not Available Alyssum linifolium Map not Available Alyssum luteolum Media not available Map not Available Alyssum macrocalyx Media not available Map not Available Alyssum marginatum Map not Available Alyssum markgrafii Map not Available Alyssum meniocoides Map not Available Alyssum minus Map not Available Alyssum minutum Map not Available Alyssum moellendorfianum Map not Available Alyssum montanum Map not Available Alyssum murale Map not Available Alyssum mutabile Media not available Map not Available Alyssum obovatum Map not Available Alyssum obtusifolium Map not Available Alyssum ovirense Map not Available Alyssum persicum Map not Available Alyssum petraeum Map not Available Alyssum pirinicum Map not Available Alyssum repens Map not Available Alyssum rostratum Map not Available Alyssum saxatile Map not Available