Stems
Stem vestiture and/or surface
Trichome cover types, or type of hairy cover.
| aculeate | With prickles. |  | 
| arachnoid | Cobwebby. |  | 
| barbed | With short, rigid reflexed bristles or processes. |  | 
| bristly | Beset with bristles; covered with stiff, strong trichomes (hairs). |  | 
| canescent | Covered with dense, fine grayish-white trichomes (hairs). |  | 
| ciliate | With tiny or small marginal trichomes (hairs). |  | 
| comose | With a tuft of trichomes (hairs). |  | 
| echinate | Covered with spines. |  | 
| floccose | Covered with dense, appressed trichomes (hairs) in patches or tufts. |  | 
| glabrescent | Becoming glabrous. | |
| glabrous | Smooth; devoid of trichomes (hairs). |  | 
| glandular | Covered with minute, blackish to translucent glands; covered with secretory or excretory trichomes (hairs). |  | 
| glaucous | Covered with a bloom or smooth, waxy coating. | |
| glochidiate | With barbed trichomes (hairs), glochids, usually in tufts. |  | 
| glutinous | Having a shiny, sticky surface. | |
| granular | Finely mealy, covered with small granules. | |
| greasy | Slick, oily, slippery to touch. | |
| hirsute | Covered with long, rather stiff trichomes (hairs). |  | 
| hispid | Covered with very long, stiff trichomes (hairs). |  | 
| lepidote | Covered with minute scales. |  | 
| mucilaginous | Gummy or gelatinous. | |
| muricate | Covered with short, hard protuberances. |  | 
| muriculate | Minutely muricate. | |
| opaque | With a dull surface. | |
| pannose | With matted, feltlike layer of trichomes (hairs); with a felty texture. |  | 
| papillose | Covered with minute tubercles. |  | 
| pruinose, frosted or sebiferous | With a heavy wax coat. | |
| puberulent | Minutely pubescent. |  | 
| pulverulent | Covered with fine, powdery wax granules. |  | 
| ramentaceous | Having many thin scales, as on the epidermis of some ferns. |  | 
| resinosus | Having a yellowish, sticky, exudate. |  | 
| roridulate or dewy | Covered with waxy platelets, appearing dewy. | |
| scaberulent | Approaching scabrous. |  | 
| scabrous | Having a harsh surface. |  | 
| sericeous | With long, silky trichomes (hairs), usually appressed. |  | 
| setose | Having setae or bristlelike trichomes (hairs). |  | 
| shining, nitid or laevigate | Lustrous, polished. | |
| spiculate | With crystals in or on the surface. |  | 
| squamose | Having coarse scales. | |
| strigose | Covered with sharp, coarse, bent trichomes (hairs) usually with a bulbous base. |  | 
| tomentose | Covered with dense, interwoven trichomes (hairs). |  | 
| tuberculate or verrucose | With a warty surface. |  | 
| urent | With erect, usually long trichomes (hairs) that produce irritation when touched. |  | 
| velutinous | Covered with dense, straight, long and soft trichomes (hairs); pile-like. |  | 
| villous | Covered with long, soft, crooked trichomes (hairs). |  | 
| viscid | Sticky or glutinous. |