familySalicaceae genusSalix subgenusSalix subg. Vetrix sectionSalix sect. Helix Show Lower Taxa Salix purpurea Dumortier Bijdr. Natuurk. Wetensch. 1: 56
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sect. Geyerianae, Salix sect. Griseae, Salix sect. Hastatae, Salix sect. Helix, Salix sect. Lanatae, Salix sect. Mexicanae, Salix sect. Nigricantes, Salix
46 KB (708 words) - 23:29, 5 November 2020
clear, summit tapered into blade or auriculate; blades twisted into loose helix, narrowly linear-attenuate, apex acute, aerenchyma prominent. Inflorescences
10 KB (1,218 words) - 21:31, 5 November 2020
familySalicaceae genusSalix subgenusSalix subg. Vetrix sectionSalix sect. Helix speciesSalix purpurea Linnaeus Sp. Pl. 2: 1017. 1753. George W. Argus Common
4 KB (394 words) - 23:31, 5 November 2020
with scale leaves, to 15 on each flowering shoot; blade twisted into loose helix, mostly slightly oblanceolate, thickly concave-convex or plano-convex proximally
14 KB (1,504 words) - 21:31, 5 November 2020
similar xeromorphic leaf morphology, such as Salix linearifolia Wolf of sect. Helix, are cases of convergence. The species of subg. Longifoliae are taxonomically
16 KB (1,385 words) - 23:33, 5 November 2020