Flora of North America Glossary
Displaying 201-225 of 2673
| Term | Synonyms | Category | Limitation | Definition |
|---|---|---|---|---|
| awn | = arista, bristle, seta | STRUCTURE | A slender, more or less straight and stiff, fine-pointed, terminal or subterminal appendage or prolongation, sometimes a continuation of the bearing structure's central primary vein, as on a glume, lemma, or palea in Poaceae (Gramineae). | |
| awned | = aristate, bristled | apex | Bearing one or more awns (aristae, bristles, setae). | |
| axehead-shaped | = dolabrate | solid shape | Like an axe head oriented cutting edge downward. | |
| axe-shaped | = dolabriform | solid shape | Elongate, basally terete, becoming strongly compressed toward an abruptly and unilaterally broader apex; like an axe (handle plus head). | |
| axil | FEATURE | The space bounded by and near the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. | ||
| axile | placentation | Upon the central axis of a compound, plurilocular ovary. | ||
| axillary | insertion | Within the axil; nodal and at or very close to the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. | ||
| axillary | position | Within the axil; nodal and at or very close to the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. | ||
| axis pl. axes | STRUCTURE | Any unitary and longitudinally continuous structure that bears laterally the subordinate portion(s), if any, of a plant root or shoot or any subdivision thereof and that represents the main line of structural development and/or symmetry distal to its origin, irrespective of the particular ontogenetic growth pattern involved. See also primary axis. | ||
| baccate | = berry-like | architecture | fruit | Having the structure and texture of a berry. |
| bag-shaped | = pouch-shaped, saccate, sack-shaped | solid shape | Irregularly obovoid with an exterior aspect intermediate between inflated and flaccid; like a closed pouch or bag. | |
| bald | = glabrous, psilate | pubescence | Lacking trichomes. | |
| balding | = glabrescent | pubescence | Becoming bald (glabrous, psilate) with age. | |
| banded | coloration | Broadly striped; having one or more elongate, relatively broad and, when multiple, more or less parallel, areas of contrasting hue and/or intensity. | ||
| banner | = standard, vexillum | STRUCTURE | The relatively large, erect adaxial (upper) petal in a papilionaceous corolla. | |
| barb 1 | STRUCTURE | Any relatively short, stiff, sharp, acutely inserted or bent, antrorse or retrorse, terminal or lateral appendage. | ||
| barb 2 | STRUCTURE | A trichome terminated by one or two small, relatively short, stiff, sharp, acutely reflexed appendages. | ||
| barbate | = bearded | pubescence | Having one or more limited sectors bearing fairly long, erect, flexible, capillary trichomes. | |
| barbed 1 | apex | Terminated by a small, relatively stiff, acutely reflexed, hook-like structure. | ||
| 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. | ||
| barbel | = barbella | STRUCTURE | A small barb. | |
| barbella pl. barbellae | = barbel | STRUCTURE | A small barb. | |
| barbellate | architecture | Bearing one or more barbels. | ||
| barbellula pl. barbellulae | = barbellule | STRUCTURE | A small barbel (barbella); a very diminutive barb. | |
| barbellulate | architecture | Bearing one or more barbellules (barbellulae). |
Displaying 201-225 of 2673