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symmetric(al) 1 |
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solid shape |
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Divisible into essentially equal halves along one or more lines or planes. |
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laevigate 1 |
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relief |
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Very smooth. |
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barbellula pl. barbellulae |
= barbellule |
STRUCTURE |
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A small barbel (barbella); a very diminutive barb. |
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mixed-craspedodromous |
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venation |
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Having a midvein that branches to either side along the length of the lamina, the secondary veins running thence toward the margin, some becoming indistinct before reaching it, others terminating there. |
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cane |
< culm, stem |
STRUCTURE |
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A woody, aboveground culm. Use of this term or culm instead of stem is a matter of tradition and preference, not of descriptive precision or necessity. |
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one-sided 2 |
= unilateral |
orientation |
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Disposed or directed toward one side only. |
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colpate |
= fossulate, furrowed, grooved, sulcate, valleculate |
architecture |
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Having one or more elongate, relatively narrow and shallow depressions (colpi). |
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petiolar |
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position |
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Upon or otherwise directly associated with the petioles. |
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pseudoterminal |
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insertion |
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Only apparently terminal; originally subapical but displaced toward the apex by differential growth during development. |
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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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root 1 |
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STRUCTURE |
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Collectively, all those portions of a plant body that are anatomically distinct from the shoot, the component axes not differentiated into nodes and internodes, and branching endogenously. |
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galeiform |
= galeate, helmet-shaped |
solid shape |
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Convex overall with a more or less smoothly curved apex, relatively thin-walled and essentially hollow with the interior open to one side below the distal portion; resembling a helmet. See also cuculliform (cucullate, hood-shaped), which overlaps conceptually. |
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squamella 2 pl. squamellae |
= squamule; < scale |
STRUCTURE |
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A small, dry bract borne on the compound receptacle (torus) of a capitulum (head); in Asteraceae (Compositae). |
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sunken |
> immersed, impressed |
prominence |
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Below the general level of the surrounding surface. |
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isthmus |
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STRUCTURE |
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A narrower portion connecting two wider or broader portions of an inclusive structure. |
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almondy |
= hydrocyanic |
odor |
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Pungently fruity like almonds, due to the presence of hydrocyanin or a closely related compound. |
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attenuate 2 |
= tapered |
solid shape |
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Gradually diminishing in breadth or diameter from one end to the other. |
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medullose |
= pithy |
texture |
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Loose or spongy internally, denser and firmer externally. |
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bundle scar |
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FEATURE |
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A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
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obovate |
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plane shape |
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Inversely ovate (egg-shaped). |
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clavate |
= club-shaped |
solid shape |
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Elongate and basically round in transverse section, the diameter greatest at or near a blunt apex, thence attenuate toward the base, the degree of taper greatest between the middle and the upper quarter. |
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…crenate |
= …-scalloped |
margin |
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Having the number of orders of crenae (scallops) indicated by the prefix, one upon another; as in bicrenate, twice-crenate. See also …dentate (…-toothed), …serrate (…-sawtoothed). |
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primary stem |
= main stem; > bole, trunk |
STRUCTURE |
|
The one, or any of the more than one, first-order stem(s), or first-order portion(s) of the collective stem, of a shoot. |
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reticulate 2 |
= netted |
coloration |
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Having a pattern of interconnected fine lines of contrasting hue and/or intensity. |
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exalate 1 |
= wingless |
architecture |
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Lacking elongate, relatively thin protrusions or appendages that resemble wings. |
