bipinnate


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Related to bipinnate: bipinnate leaf, Bipinnate muscles

bipinnate

[bī′pin‚āt]
(botany)
Pertaining to a leaf that is pinnate for both its primary and secondary divisions.
References in periodicals archive ?
1) separated most small-leaved bipinnate trees and shrubs from most broadleaved species.
Rhizomes short, creeping; fronds 25-130 cm long; rachis green or reddish; blades ovate or oblanceolate, 20-100 cm long, bipinnate or tripinnate; sori elongated, straight or curved, sub-marginal; indusia marginally ciliate.
Its leaves are most picturesque, for they are bipinnate blanketed in tiny white hairs, bestowing the foliage a silvery radiance.
Inflorescence bipinnate in its outer portion, simple in its central portion, subumbellate, sessile, densely many-flowered, ca.
scheuchzeri frond is demonstrably bipinnate (Laveine and Brousmiche 1982), with intercalated pinnate structures (Bertrand 1930; this paper).
3-5 mm apart), inflorescence bipinnate to sometimes inconspicuously tripinnate (vs.
Inflorescence bipinnate, densely 6 to 24-branched, 5-18 x 5-8 cm.
Inflorescence laxly paniculate, broadly pyramidate, tripinnate at base and bipinnate toward the apex, 65-70 cm long, 20-45 cm in diameter at base, erect, rachis white lanate but soon glabrous, dark purple-wine, rugulose, straight to slightly flexuous near the apex, 1-1.
Salpichlaena is most closely related to Blechnum, but differs in its twining habit, chromosome number and fronds with laminae bipinnate (Smith, 1995).
Inflorescence bipinnate except for the inconspicuously simple extreme apex, subellipsoid to capitate, erect, 4.
Inflorescence cylindrical, very densely bipinnate, up to 1 m long, ca.