from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having a flat circular structure attached to a stalk near the center, rather than at or near the margin; shield-shaped: the peltate leaf of the nasturtium.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Shield-shaped; scutiform.
- adj. Having the petiole attached to the lower surface instead of the margin.
from the GNU version of the Collaborative International Dictionary of English
- adj. Shield-shaped; scutiform; (Bot.) having the stem or support attached to the lower surface, instead of at the base or margin; -- said of a leaf or other organ.
from The Century Dictionary and Cyclopedia
- Shield-shaped; in botany, fixed to the stalk by the center or by some point distinctly within the margin; having the petiole inserted into the under surface of the lamina, not far from the center: as, a peltate leaf.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (of a leaf shape) round, with the stem attached near the center of the lower surface rather than the margin (as a nasturtium leaf for example)
I have written of a lake, but no water was visible, for it was concealed by thousands and thousands of the peltate leaves of the lotus, nearly round, attaining a diameter of eighteen inches, cool and dewy-looking under the torrid sun, with a blue bloom upon their intense green.
The stems are green or reddish-green and the leaves show a considerable variation in form, but are normally 5-20 cm long, peltate, with 3-5 lobes.
The leaves are heart-shaped, 20 - 50 cm long, with rounded basal lobes; the leaf stalk joins the blade some distance inward from the notch between the lobes (ie the leaf is peltate - a feature which distinguishes the plant from the rather similar Xanthosoma).
Leaves are peltate, 60-90 cm in diameter on very long petioles and are often raised 1-2 m above the surface of the water.
_Tropæolum majus_, in which the ovules were replaced by perfect peltate leaves, is that the ovules are foliar productions springing, not directly from a prolonged floral axis, as in _Primulaceæ_, but from branches of the axis arising from the axils of the carpellary leaves.
= -- The leaves of Hazels may often be found with their margins coherent at the base, so as to become peltate, while in other cases, the disc of the leaf is so depressed that
From this point of view, peltate leaves like those of _Tropæolum_ or _Nelumbium_ become very significant.
Between such cases and that of a peltate leaf with a depressed centre, such as often occurs, to some extent, in _Nelumbium_, there is but little difference.
As the specific name implies, the leaves are peltate or umbrella-shaped, deeply lobed, each lobe being deeply cut, and all unevenly toothed and hairy at the edges, with a fine down covering the under sides; the upper surface is of a lively, shining green colour, and finely veined.
The leaves are nearly round in outline, sub-peltate, five, but sometimes only three-lobed; lobes entire, sometimes notched, smooth and glaucous; the leaf-stalks are long and bent, and act as tendrils.
Wordnik is becoming a not-for-profit! Read our announcement here.