Aphragmus

Andrzejowski ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 1: 209. 1824.

Etymology: Greek a-, not or without, and phragma, septum, alluding to its lack in fruit of some species
Synonyms: Oreas Chamisso & Schlechtendal Orobium Reichenbach Staintoniella H. Hara
Treatment appears in FNA Volume 7. Treatment on page 256. Mentioned on page 231, 232, 239, 245.

Plants not scapose; (sometimes rhizomatous, caudex thick, covered with persistent petiolar remains); glabrous or pubescent, trichomes simple or forked, (less than 0.1 mm). Stems erect or ascending, branched basally. Leaves basal and cauline; petiolate or sessile; basal rosulate, petiolate, blade margins entire; cauline petiolate or sessile, blade margins entire. Racemes (few to several-flowered), bracteate throughout or basally. Fruiting pedicels [erect] ascending, divaricate, sometimes recurved, slender. Flowers: sepals (sometimes persistent), oblong; petals broadly obovate or spatulate, claw subequaling sepal, (apex rounded [obtuse]); stamens slightly tetradynamous; filaments dilated or not basally; anthers obtuse; nectar glands confluent, subtending bases of stamens. Fruits silicles or siliques, sessile or subsessile, oblong, elliptic, or lanceolate [ovate, linear]; valves each with obscure or distinct midvein, (smooth), glabrous; replum flattened basally; septum absent [complete and membranous]; style obsolete or distinct (to 2 mm); stigma capitate. Seeds plump, not winged, oblong or ovoid (on filiform funicles often longer than seeds); seed-coat (minutely reticulate), not mucilaginous when wetted; cotyledons incumbent. x = 7.

Distribution

nw North America, Asia (Himalaya), Asia (Russian Far East)

Discussion

Species 11 (1 in the flora).

"elongated" is not a number."thick" is not a number.

... more about "Aphragmus"
Ihsan A. Al-Shehbaz +
Andrzejowski ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
appendaged +  and unappendaged +
dissected +, repand +, sinuate +, crenate +  and dentate +
much smaller +  and reduced +
urceolate +, campanulate +  and tubular +
branched +  and simple +
sessile +  and petiolate +
well-developed +
distinct +
not +  and differentiated +
emarginate +  and entire +
nw North America +, Asia (Himalaya) +  and Asia (Russian Far East) +
straight +  and curved +
Greek a-, not or without, and phragma, septum, alluding to its lack in fruit of some species +
not winged +  and unappendaged +
connate +  and distinct +
not basally +  and dilated +
actinomorphic +
subsessile +  and sessile +
lanceolate +, elliptic +  and oblong +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
pinnatifid +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
rudimentary +
trinucleate +  and 3(-11)-colpate +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
elongated +
recurved +  and ascending +
slender +
al-shehbaz2003a +  and ebel1998a +
flattened +
mucilaginous +
not +  and mucilaginous +
White (?) +, Black (?) +, Brown (?) +  and Yellow (?) +
ovoid +  and oblong +
persistent +  and caducous +
distinct +
ascending +  and erect +
perforated +  and complete +
reduced +
subsessile +  and sessile +
lanceolate +, elliptic +  and oblong +
subsessile +  and sessile +
lanceolate +, elliptic +  and oblong +
tetradynamous +
procumbent +  and decumbent +
ascending +  and erect +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
Oreas +, Orobium +  and Staintoniella +
Aphragmus +
Brassicaceae tribe Aphragmeae +
coiled +, 1-7-veined +  and veined +
anastomosing +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
pubescent +  and glabrous +