| synsepalous | = gamosepalous | architecture | flower, perianth, calyx | Having two or more sepals that are partially or wholly connate. | 
          
                  | synstemonous |  | architecture | flower, androecium | Having two or more stamens, some or all of them connate. | 
          
                  | syntepalous | = gamotepalous | architecture | flower, perianth | Having two or more tepals that are partially or wholly connate. | 
          
                  | taeniate | = tapeworm-shaped | solid shape |  | Slender, elongate, basically cylindric or compressed-cylindric with shallow, narrow, more or less regular constrictions along its length, the whole apparently segmented and straight or variously curved. | 
          
                  | tailed 1 | = caudate | apex | laminar structure | Terminating in a relatively long, flexible, narrowly acuminate tip composed of laminar tissue. | 
          
                  | tailed 2 | = caudate | base |  | With one or more relatively slender, retrorse basal enations or appendages. | 
          
                  | tapered | = attenuate | plane shape |  | Gradually diminishing in width or diameter from one end to the other. | 
          
                  | tapered | = attenuate | solid shape |  | Gradually diminishing in width or diameter from one end to the other. | 
          
                  | tapeworm-shaped | = taeniate | solid shape |  | Slender, elongate, basically cylindric or compressed-cylindric with shallow, narrow, more or less regular constrictions along its length, the whole apparently segmented and straight or variously curved. | 
          
                  | taproot | < primary root | STRUCTURE |  | A primary root that remains dominant through the life of the plant as the main axis of a vertically oriented system that penetrates the substrate to a considerable depth. | 
          
                  | taprooted |  | architecture | plant | Having a taproot.  See also diffuse-rooted, fibrous-rooted. | 
          
                  | tartareous | = tartar-like | relief |  | Rough and crumbling spontaneously, becoming erose. | 
          
                  | tartar-like | = tartareous | relief |  | Rough and crumbling spontaneously, becoming erose. | 
          
                  | teardrop-shaped 1 | = lacrimate | plane shape |  | Broadest just below the middle, broadly rounded to the base, and acutely attenuate to the apex; like the stylized lateral outline of a teardrop. | 
          
                  | teardrop-shaped 2 | = lacrimiform | solid shape |  | Transversely round and broadest just below the middle, broadly rounded to the base and acutely attenuate to the apex. | 
          
                  | ten-… | = deca… | prefix |  | Indicating presence of or constitution by ten entities of the type denoted by the term's stem; as in ten-carpeled, ten-stamened, ten-winged. | 
          
                  | tendril |  | STRUCTURE |  | A slender stem branch, modified leaf, or portion of a leaf that twines about a supporting structure. | 
          
                  | tepal |  | STRUCTURE |  | Any member of an undifferentiated perianth; may be green and foliaceous or colored and petaloid, distinct or else connate with one or more others, and/or free or else adnate with one or more other floral structures. | 
          
                  | …tepaled | = …tepalous | architecture | flower, perianth | Having the number of tepals indicated by the prefix; as in six-tepaled. | 
          
                  | …tepalous | = …tepaled | architecture | flower, perianth | Having the number of tepals indicated by the prefix; as in hexatepalous. | 
          
                  | terete |  | solid shape |  | Elongate and transversely round, gradually attenuate from base to apex; attenuate-cylindric or attenuate-tubular, broadest at the base.  See also obterete. | 
          
                  | tergeminate | = trigeminous, trijugate | architecture | foliaceous structure | Compound with three orders of leaflets, each order bifoliolate. | 
          
                  | terminal |  | insertion |  | Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. | 
          
                  | terminal |  | position |  | Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. | 
          
                  | ternate |  | architecture | foliaceous structure | Palmate with three leaflets. |