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connate-perfoliate |
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architecture |
opposite laminar structures |
Having the bases in each pair fused and together encircling the bearing axis. See also amplexicaulous, perfoliate. |
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striped |
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coloration |
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Having one or more elongate, relatively narrow and, when multiple, more or less parallel, areas of contrasting hue and/or intensity. |
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synandrous |
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architecture |
flower, androecium |
Having the stamens connate. |
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anadromous |
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venation |
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Having the first lateral vein in each pinna or primary segment of the frond arise from its midvein on the side toward the apex of the frond, the pinnule or secondary segment that it leads to often disproportionately larger than the next distal ones. |
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extrorse |
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dehiscence |
anther |
Opening outwardly, on the abaxial side. See also introrse, latrorse. |
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superposed 2 |
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position |
buds |
Axillary in pairs, one member of each pair directly above the other. |
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throat 2 |
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STRUCTURE |
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The fully connate portion of the limb of a disc floret, proximal to the lobes (distinct distal portions of the petals); in Asteraceae (Compositae). |
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coronal |
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insertion |
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Upon or otherwise directly associated with the corona. |
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heteropolar |
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architecture |
pollen grain, spore |
Having morphologically evident polarity, the proximal and distal halves dissimilar. |
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erect |
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orientation |
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Perpendicular to the horizon or to the general plane of a bearing structure. |
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apex pl. apices |
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CHARACTER |
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Configuration of the uppermost, distal, or terminal portion of a structure, its extent determined somewhat subjectively in relation to the shape of the structure as a whole. The concept of apex varies from one descriptive context to another, since the apex is not a clearly delimited, morphologically distinct entity. The terms for describing apical condition are not strictly coordinate logically — some are more inclusive than others, some describe conditions involving what can be regarded as appendages, and some refer to the apex in a developmental as well as a strictly topological sense — and precise characterization may require using more than one descriptor. The semantic antecedent of some descriptors is "apex," whereas the antecedent of others is the structure as a whole (e.g., leaf ). |
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flaccid |
|
texture |
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Limp, sometimes appearing withered or shrunken. See also tumid (swollen, turgid). |
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terminal |
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insertion |
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Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. |
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tubercle |
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FEATURE |
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A small, rounded, knot-like swelling or wart-like protrusion. |
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fibrous |
|
texture |
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Having tough, woody or sclerotic strands distributed through a softer matrix. |
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velum pl. vela |
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STRUCTURE |
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A membranous adaxial flap or fold of vegetative tissue wholly or partly covering the sporangial cavity of a sporophyll; in Isoëtaceae. |
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deltate |
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plane shape |
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Equilaterally triangular, broadest at the base, and regularly attenuate to an angular apex. See also obdeltate. |
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tree |
|
nominative |
plant |
Perennial, woody, more or less erect, relatively tall, with one or more distinct aboveground portions each with a single, relatively stout, columnar, main stem (trunk or bole) that bears branches. See also bush, frutex, shrub, subshrub, suffrutex, undershrub, woody clump. |
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involucre 1 |
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STRUCTURE |
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One or more closely proximate whorls, or a compact spiral, of bracts immediately subtending an inflorescence, the bracts sometimes leaf-like, sometimes petaloid. |
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lemma pl. lemmata, lemmas |
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STRUCTURE |
|
The proximal bract of the (usually) two that immediately subtend the flower in a grass (Poaceae) floret; the other is the palea. |
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infructescence 1 |
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STRUCTURE |
|
A mature (fruiting) inflorescence (static sense). |
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elliptic(al) 1 |
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arrangement |
bundle scars |
Forming an ellipse |
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microphyll |
|
STRUCTURE |
|
A small, lateral, leaf-like enation that, evolutionarily, is not a true leaf, i.e., whose vasculature, if any, consists of only a single median strand not ontogenetically integral with the vasculature of the bearing stem and not associated with leaf gaps in the stele of the stem; in Bryophyta, Psilotophyta, Lycopodiophyta, Equisetophyta. |
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rhizomatous |
|
architecture |
plant |
Having rhizomes. |
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matted |
|
habit |
plants |
Growing in extensive, low, dense aggregations, sometimes with the stems of different plants intertwined. |
