Flora of North America Glossary
Displaying 2101-2125 of 2673
| Term | Synonyms | Category | Limitation | Definition |
|---|---|---|---|---|
| …serrate | = …-sawtoothed | margin | Having the number of orders of sawteeth indicated by the prefix, one upon another; as in biserrate. See also …crenate (…-scalloped), …dentate (…-toothed). | |
| serrate | = sawtoothed | margin | Having regularly spaced, angular convexities oriented at an acute angle to the generalized perimeter. See also crenate (scalloped), crenulate (small-scalloped), dentate (toothed), denticulate (small-toothed), serrulate (small-sawtoothed). | |
| serrulate | = small-sawtoothed | margin | Finely serrate (sawtoothed). See also crentate (scalloped), crenulate (small-scalloped), dentate (toothed), denticulate (small-toothed). | |
| sessile | = exstipitate, stalkless, unstalked | architecture | structure | Lacking a stalk, thus inserted ("sitting") directly upon the bearing structure. |
| seta 1 pl. setae | = arista, awn, bristle | 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). | |
| seta 2 pl. setae | = bristle; > glochid, glochidium | STRUCTURE | A trichome that is elongate, slender, more or less straight, terete, fine-pointed, and stiff. | |
| setaceous | = bristle-shaped, setiform | solid shape | Elongate, slender, terete, straight, terminating in a fine point, and apparently stiff; like a bristle. | |
| setiform | = bristle-shaped, setaceous | solid shape | Elongate, slender, terete, straight, terminating in a fine point, and apparently stiff; like a bristle. | |
| setose | = hispid; < bristly | pubescence | Bearing relatively long and slender, more or less straight, terete, fine-pointed, stiff trichomes. See also setulose (hispidulous, small-bristly). | |
| setulose | = hispidulous, small-bristly | pubescence | Finely setose (hispid). | |
| seven-… | = hepta… | prefix | Indicating presence of or constitution by seven entities of the type denoted by the term's stem; as in seven-leafleted, seven-loculed, seven-winged. | |
| shaggy | = villose, villous | pubescence | Bearing sparse, long, slender, soft, capillate trichomes that are not intertwined. See also villosulous. | |
| sharp | = acute | apex | Acutely angular; regularly and more or less straightly attenuate to an angular tip, the sides intersecting at an angle of less than 90°. | |
| sheathed | = vaginate | architecture | structure | Closely enclosed over some or all of its length by a terete or involute structure. |
| sheathing 1 | architecture | foliaceous structure | Differentiated into distinct proximal and distal portions, the former terete or involute and closely enclosing the bearing axis above the point of insertion. | |
| sheathing 2 | base | laminar structure | Terete or involute and closely enclosing the supporting axis for some distance above the point of insertion. | |
| sheath (leaf) | STRUCTURE | The lower (basal or proximal), fundamentally laminar but strongly involute portion of one of the non-petiolate leaves characteristic of most monocotyledons (Liliidae); distinct from the leaf blade, which, when present, is borne distally upon it; analogous, though not necessarily homologous, with a petiole; usually more or less completely enclosing a portion of the stem above the node from which the leaf is borne. | ||
| shining | = glossy, laevigate, lustrous, polished, shiny | reflectance | Uniformly reflecting a high proportion of incident light at all angles. | |
| shiny | = glossy, laevigate, lustrous, polished, shining | reflectance | Uniformly reflecting a high proportion of incident light at all angles. | |
| shoot 1 | STRUCTURE | Collectively, all those portions of a plant body that are anatomically distinct from the root, the component axes differentiated into nodes and internodes, and branching exogenously from the former. | ||
| shoot 2 | STRUCTURE | A vascularized axis that is differentiated into nodes and internodes and that branches exogenously from the former, together with any non-axial structures borne from it. | ||
| short-shoot | = spur | STRUCTURE | A first- or higher-order woody stem branch having relatively unelongated internodes, thus proximate nodes, and limited duration of growth, usually branching little if at all; often a main locus of flower production; usually more or less perpendicular to the axis that bears it and resembling a spur projecting from it; sometimes becoming more or less spinose after elongation ceases; esp. in Rosaceae. | |
| showy | < conspicuous | manifestation | Prominently evident and attractive due to size, shape and/or coloration. | |
| shrub | = frutex; > bush | nominative | plant | Perennial, woody, relatively short, with a single main stem that is not distinctly columnar and branches from or above ground level, the branches often crowded. See also subshrub (suffrutex, undershrub), tree, woody clump. |
| shrubby | > bushy, frutescent, fruticose | habit | plant | Having or developing the character of a shrub. See also arboreous, arborescent, subshrubby, suffrutescent, suffruticose, tree-like, woody-clumping. |
Displaying 2101-2125 of 2673