Myagrum

Linnaeus

Sp. Pl. 2: 640. 1753.

,

Gen. Pl. ed. 5, 289. 1754.

Etymology: Greek muagron, name used by Dioscorides and Pliny for a species of mustard
Treatment appears in FNA Volume 7. Treatment on page 568. Mentioned on page 230, 239.
 TaxonIllustrator 
FNA7 P71 Myagrum perfoliatum.jpegMyagrum perfoliatum
Lepidium acutidens
Lepidium alyssoides
Lepidium appelianum
Lepidium austrinum
Lepidium barnebyanum
Lepidium campestre
Barbara Alongi
Barbara Alongi
Barbara Alongi
Barbara Alongi
Barbara Alongi
Barbara Alongi
Barbara Alongi

Annuals; not scapose; (glaucous), glabrous. Stems erect, branched distally. Leaves basal and cauline; petiolate or sessile; basal (soon withered), not rosulate, petiolate, blade margins pinnatifid, runcinate, sinuate, or dentate; cauline blade (base auriculate, sagittate, or amplexicaul), margins entire or denticulate. Racemes (corymbose, several-flowered), considerably elongated in fruit. Fruiting pedicels appressed to rachis, stout. Flowers: sepals oblong to ovate, lateral pair subsaccate basally; petals oblong to oblanceolate, (slightly longer than sepals), claw undifferentiated from blade, (apex obtuse); stamens tetradynamous; filaments not dilated basally; anthers oblong, (apex obtuse); nectar glands (4) lateral, and (2) median (sometimes obscurely confluent with lateral). Fruits silicles, sessile, obpyriform to clavate-obcordiform, (woody, broadest distal to middle), slightly angustiseptate; (seed-bearing locule basal, 1 (or 2) -seeded, distal 2 locules seedless); replum rounded; ovules 2 per ovary; style distinct, (flattened, triangular); stigma capitate. Seeds plump, not winged, oblong to ovoid; seed-coat not mucilaginous when wetted; cotyledons incumbent. x = 7.

Distribution

Introduced; s Europe, sw Asia, also in Africa, Australia

Discussion

Species 1.

Selected References

None.

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

... more about "Myagrum"
Ihsan A. Al-Shehbaz +
Linnaeus +
appendaged +  and unappendaged +
dentate +, sinuate +, runcinate +  and pinnatifid +
much smaller +  and reduced +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
undifferentiated +
not +  and differentiated +
emarginate +  and entire +
incumbent +  and accumbent +
s Europe +, sw Asia +, also in Africa +  and Australia +
straight +  and curved +
Greek muagron, name used by Dioscorides and Pliny for a species of mustard +
not winged +  and unappendaged +
connate +  and distinct +
actinomorphic +
indehiscent +
angustiseptate +
angustiseptate +, obpyriform +  and clavate-obcordiform +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
seedless +, 1-seeded +  and seed-bearing +
denticulate;entire +
median +  and lateral +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
rudimentary +
oblong +  and oblanceolate +
trinucleate +  and 3(-11)-colpate +
Sp. Pl. +  and Gen. Pl. ed. +
1753 +  and 1754 +
mucilaginous +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
oblong +  and ovoid +
saccate +  and not saccate +
persistent +  and caducous +
distinct +
ascending +  and erect +
subsaccate +, oblong +  and ovate +
perforated +  and complete +
reduced +
angustiseptate +
angustiseptate +
tetradynamous +
procumbent +  and decumbent +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
Cruciferae +
Myagrum +
Brassicaceae tribe Isatideae +
scale-like +  and forked +
coiled +, 1-7-veined +  and veined +
pubescent +  and glabrous +
anastomosing +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +