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nectar |
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SUBSTANCE |
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An aqueous exudate of high sugar content. |
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mucilage |
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substance |
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A slimy exudate. |
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symbiotic |
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nutrition |
plant |
Partially dependent for essential nourishment upon other living organisms that derive some reciprocal benefit from the relationship. |
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superaxillary |
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position |
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Internodal but close to and directly above the axil(s). |
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drooping |
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orientation |
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Erect to salient (patent, porrect, spreading) proximally and curving downward distally. |
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nutlet |
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nominative |
fruit |
A small, relatively hard-coated mericarp; esp. in Lamiaceae (Labiatae), Verbenaceae. |
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thermocleistogamous |
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reproduction |
flower |
Normally chasmogamous but facultatively cleistogamous during periods of lower-than-normal temperature. |
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dichasium pl. dichasia |
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nominative |
inflorescence |
Determinate and falsely dichotomous with each axial segment bearing a sessile terminal flower and either a pair of opposite pedicellate lateral flowers or a pair of opposite lateral branches. See also cincinnus, cyme, cymule, helicoid cyme, monochasium, scorpioid cyme. |
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opposite 1 |
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arrangement |
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Disposed in pairs along the axis, the members of each pair inserted at the same level across from one another. |
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faceted |
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solid shape |
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Having numerous, relatively small, flat or shallowly curved portions of the external surface that are bounded by more or less distinct angular discontinuities in that surface. |
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fluted |
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solid shape |
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Having rounded to angular longitudinal grooves. |
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aggregate fruit |
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nominative |
fruit |
Compound and derived from the two or more simple, superior ovaries of a single apocarpous flower; the ovaries connate, coherent, or contiguous in the fruit, the whole with or without accessory tissue. |
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flanged |
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solid shape |
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Having a relatively broad circumferential rim or ridge that protrudes laterally. |
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prophyllar |
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position |
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Upon or otherwise directly associated with the prophylls (bracteoles, bractlets). |
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gynomonoecious |
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reproduction |
taxon |
Having all plants with both bisexual flowers and pistillate ones. |
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pulvinus pl. pulvini |
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STRUCTURE |
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A short, cushion-like swelling at the junction of stem and leaf or of inflorescence axis and branch. |
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banded |
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coloration |
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Broadly striped; having one or more elongate, relatively broad and, when multiple, more or less parallel, areas of contrasting hue and/or intensity. |
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revolute 1 |
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margin |
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Rolled inward abaxially. |
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revolute 2 |
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vernation |
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Each rolled abaxially inward from the lateral margins. |
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heteropolar |
|
architecture |
pollen grain, spore |
Having morphologically evident polarity, the proximal and distal halves dissimilar. |
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reclining |
|
habit |
axis |
Inserted above substrate level and recurved, the distal portion procumbent. |
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rosette |
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STRUCTURE |
|
A set of leaves that are strongly congested and disposed in radial symmetry about the main stem at or very near its base, seeming to arise at the same level and often overlapping laterally; esp. the overwintering leaves of perennial herbs. |
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sectile |
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architecture |
pollinium |
Having partially separated sectors, as though cut. |
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involucre 1 |
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STRUCTURE |
|
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 |
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The proximal bract of the (usually) two that immediately subtend the flower in a grass (Poaceae) floret; the other is the palea. |
