Brassicaceae Burnett
Draba family.
Brassicaceae (Cruciferae), Draba family.
Vegetative morphology. Plants herbs with acrid, watery juice and regular cruciform flowers with 4 deciduous sepals, 4 petals, and 6 anthers. Fruit is a 2 valved pod or silique, two locular by a thin membranous partition stretched between the marginal placentae. Leaves distributed along the stems, or in a basal tuft, or basal in a rosette; alternate. Petioles glabrous, or glabrescent (very sparsely hairy on the margins); puberulent; hairs less than the diameter of the petiole. Petioles hairs spreading; straight; smooth. Leaf blade bases cordate, or truncate, or cuneate, or attenuate. Blades flat. Blades adaxial surface dull (usually), or shiny; glabrous, or scabrous, or hairy.
Reproductive morphology. Flowering stems present. Petals fused. Stamens 6; filaments markedly unequal in length. Carpels syncarpous. Fruit a silique.
Illustrations. • Fruit. Family characterized by siliques; fruit that have a partition with seeds attached to the edges of the partition and not to the ovary wall.
Cite this publication as: ‘S.G. Aiken, M.J. Dallwitz, L.L. Consaul, C.L. McJannet, L.J. Gillespie, R.L. Boles, G.W. Argus, J.M. Gillett, P.J. Scott, R. Elven, M.C. LeBlanc, A.K. Brysting and H. Solstad. 1999 onwards. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. Version: 29th April 2003. http://www.mun.ca/biology/delta/arcticf/’. Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993, 1995, 2000) should also be cited (see References).
