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adj. Botany
Pinnately divided or cleft: a pinnatifid leaf.


(Botany) (of leaves) pinnately divided into lobes reaching more than halfway to the midrib
pinˈnatifidly adv


(pɪˈnæt ə fɪd)

(of a leaf) pinnately cleft, with clefts reaching halfway or more to the midrib.
[1745–55; < New Latin pinnātifidus. See pinnate, -i-, -fid]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.pinnatifid - (of a leaf shape) cleft nearly to the midrib in broad divisions not separated into distinct leaflets
compound - composed of more than one part; "compound leaves are composed of several lobes; "compound flower heads"
References in periodicals archive ?
Rhizomes long creeping, covered with membranous ovate-apiculate scales; rhizome scales comose in distinct grades on dorsal surface, bicolorous with a dark central streak of sclerotic cells and pale margins, which are denticulate to erose; blade lanceolate to oblanceolate, basally pinnatisect and lobed to pinnatifid distally, with proximal lobe free; laminar scales scattered on abaxial surface and glabrescent on adaxial surface, with round to ovate scales with apiculate or caudate apices, center obscure brown, margins pale brown, fimbriate to ciliate; midribs and secondary veins not visible; sori oblong, with orbicular, peltate scales similar to those in the lamina; spores bilateral, abortive, prominently verrucate.
Lactuca serriola is a roadside weed plant with two or three inches lobed or pinnatifid leaves that clasp the stem.
5) cm, crowded at base and along stem, oblanceolate, sinuate-dentate or pinnatifid with acute lobes; lower leaves long-petioled, upper and floral sessile.
Proteaceae also occur in the Paleocene of New Zealand, and include an incomplete but cuticle-bearing pinnatifid leaf described by Pole (1997) as Lomatia novaezelandiae.
Netted, or pinnatifid, vein arrangement has a main central midrib with secondary veins branching from it.
Rhizomes long, creeping; fronds 30-130 cm long, monomorphic or dimorphic; blades pinnatifid to pinnate-pinnatifid, ovate-deltoid to ovate-triangular; sori oblong in chain-like rows.
Such examples include white pine (Pinus strobus--SR), Canada blueberry (Vaccinium myrtilloides--SE), wintergreen (Gaultheria procumbens), rock spikemoss (Selaginella rupestris--ST), pinnatifid spleenwort (Asplenium pinnatifidum), hay-scented fern (Dennstaedtia punctilobula), northern bush-honeysuckle (Diervilla lonicera--SR), and Forbes' saxifrage (Saxifraga forbesii Vasey--SE).
Figure 11a shows the tip region of a primary or secondary pinna with 2 cm long pinnules homologous to ultimate pinnae, which then change to pinnatifid pinnules in which subsidiary veins tend to dominate.
The coconut is a palm with a long, flexible, greyish, almost smooth stem, with a tuft of about thirty pinnatifid leaves 16-20 in (5-6 m) long.