|
indument |
|
STRUCTURE / SUBSTANCE |
|
See indumentum. |
|
pappus scale |
|
STRUCTURE |
|
A pappus element that is more or less planate and relatively thin and broad; may terminate in one or more awn- or bristle-like appendages. |
|
drooping |
|
orientation |
|
Erect to salient (patent, porrect, spreading) proximally and curving downward distally. |
|
raceme |
|
nominative |
inflorescence |
An elongate, unbranched main axis bearing pedicellate flowers inserted singly along it. |
|
internode |
|
STRUCTURE |
|
Any portion of a stem between two successive nodes. |
|
siliceous |
|
texture |
epidermis, trichome |
Containing deposits of silica, thus hardened and abrasive. |
|
vascular |
|
insertion |
|
Upon or otherwise directly associated with the vasculature. |
|
andromonoecious |
|
reproduction |
taxon |
Having all plants with both bisexual flowers and staminate ones. |
|
superposed 1 |
|
arrangement |
|
Approximate to congested, inserted directly above and below one another. |
|
campylotropous |
|
orientation |
ovule |
Having the (reniform) ovule curved toward the ovary wall, the micropyle facing the wall, and the funiculus attached near the center of the concave side, the curvature and displacement of funicular insertion due to asymmetrical growth during ontogenesis. |
|
solid shape |
|
CHARACTER |
|
Overall three-dimensional form or aspect(s) thereof. Overlaps conceptually with architecture, arrangement, habit, insertion, orientation, position, relief, and texture (as to thickness). |
|
antipetalous |
|
position |
equivalent floral structures |
Each inserted directly above or below a petal. In place of this term, the phrase "opposite the petals" is often used, but that contradicts the sense of opposite as otherwise employed (arrangement of lateral structures along an axis) and should be avoided. |
|
reticulodromous |
|
venation |
|
Having a single median primary vein that branches to either side along the length of the lamina, the secondary veins running thence toward the margin, branching repeatedly, becoming less distinct, and yielding a dense higher-order reticulum near the margin. |
|
spinulose |
|
apex |
|
Finely spinose. |
|
spinulose |
|
architecture |
|
Finely spinose. |
|
terrestrial |
|
habit |
plant |
Growing upon the ground, usually rooted in it. |
|
chaff 1 |
|
STRUCTURE |
|
Collectively, the paleae (pales, palets) sometimes borne on the receptacle of a capitulum (head) in Asteraceae (Compositae). |
|
asymmetric(al) 2 |
|
architecture |
flower |
Having the perianth members in whorls that are irregular and/or unequal in number of members. |
|
heartwood |
|
STRUCTURE |
|
The senescent inner or central portion of the wood (xylem) of an older stem or root, its cells no longer living, in which conduction has ceased and primary reserve materials are no longer stored; often containing terminal metabolic products; usually darker in color than the living, conducting sapwood that encircles it. |
|
oblong 1 |
|
plane shape |
|
Compressed-elliptic, the sides approximately parallel from near one end to near the other. See also elliptic(al) (oval). |
|
tomentulose |
|
pubescence |
|
Finely tomentose. |
|
decurrent |
|
base |
laminar structure |
Having the lamina prolonged and adherent to the supporting axis beneath the point of vascular insertion, the prolonged portion termed a sterigma. |
|
limp |
|
texture |
|
Lacking stiffness in in one or more dimensions, thus drooping or sagging where unsupported. |
|
firm |
|
texture |
|
Yielding under only moderately strong pressure; only slightly deformable without internal structural disruption. |
|
barbed 2 |
|
solid shape |
|
Having one or more relatively short, stiff, acutely inserted or bent, antrorse or retrorse, terminal and/or lateral hook-like appendages; esp. awns or setae. |
