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Thlaspi
Family: Brassicaceae
Thlaspi image
Paul Rothrock
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Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Plants often fetid when crushed; not scapose; glabrous or pubescent. Stems erect, unbranched or branched distally. Leaves basal and cauline; petiolate or sessile [subsessile]; basal (often withered in fruit), rosulate or not, petiolate [subsessile], margins entire, repand, dentate, or sinuate-dentate; cauline sessile, blade (base auriculate or sagittate), margins dentate, repand, or entire. Racemes (several-flowered), considerably elongated in fruit. Fruiting pedicels divaricate, (straight or slightly curved), slender. Flowers: sepals erect or ascending, ovate or oblong, (margins membranous); petals spatulate [oblong], claw differentiated or not from blade, (apex obtuse or emarginate); stamens slightly tetradynamous; filaments not dilated basally; anthers ovate, (apex obtuse); nectar glands (2 or 4), lateral, often 1 on each side of lateral stamen, median glands absent. Fruits silicles, sessile, oblong, obovate, obcordate, or suborbicular, (apex often notched), keeled, strongly angustiseptate; valves winged throughout or apically, glabrous; replum rounded; septum complete, (not veined); ovules 6-16 per ovary; style obsolete or not, (included in apical notch); stigma capitate. Seeds plump, not winged, ovoid; seed coat (coarsely reticulate, alveolate or concentrically striate), not mucilaginous when wetted; cotyledons accumbent. x = 7.
Vascular plants of NE US and adjacent Canada
Sep ascending; pet white (in ours) to pink or blue, spatulate to obovate; short filaments flanked on each side by a semicircular gland; filaments slender, with ovate anthers; ovary ellipsoid to obovoid, somewhat flattened; style very short; frs orbicular to obovate or obcordate, strongly flattened contrary to the septum, distended over the seeds, keeled or winged at the margin, retuse at the summit; seeds normally 4 or more per locule; herbs, usually glabrous, with auriculate lvs. 75, mostly 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.
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Thlaspi alliaceum
Image of Thlaspi alliaceum
Thlaspi alpinum
Image of Thlaspi alpinum
Thlaspi arcticum
Image of Thlaspi arcticum
Thlaspi arvense
Image of Thlaspi arvense
Thlaspi caerulescens
Image of Thlaspi caerulescens
Thlaspi californicum
Image of Thlaspi californicum
Thlaspi coronopifolia
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not available
Thlaspi hesperium
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not available
Thlaspi kovatsii
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not available
Thlaspi lilacinum
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not available
Thlaspi macrophyllum
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not available
Thlaspi mexicanum
Image of Thlaspi mexicanum
Thlaspi trinervium
Image of Thlaspi trinervium
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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