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A. Corolla tubes 2,5-5 mm. long; calyx tubes 2 mm, long or less
B. Spikes interrupted , moniliform, the whorls distinct; leaves deltoid, tending to be
abaout twice as long as broad; corollas rose purple, the tubes 3-5 mm. long. ...........A. Wrightii
BB. Spikes more or less continuous, the lower whorls often distinct but the upper approximate
or crowded; leaves narrowly deltoid or deltoid-lanceolate, tending to be about three times
as long as broad; corollas white, the tubes 2,5-3 mm. long. ......................................A. micrantha
AA. Corolla tubes 6-30 mm. long; calyx tubes usually more than 3 mm. long.
B. Leaves either wholly entire, or, if toothed toothed only toward the base, the upper margins
entire, such toothed leaves being chiefly basal; corolla tubes 15-30 mm. long (if Mexican
plants see also A. mexicana).
C. Leaves linear or linear-lanceolate, always entire, generally less than
5 mm. broad. ............................................................................................................A. rupestris
CC. Leaves ovate or ovate lanceollate, sometimes toothed, and if so, usually near the
base. generally more than 5 mm. broad...............................................................A. cana
BB. Leaves crenate or serrate
C. Lower surfaces of leaves tomentellous with minute hairs, feltlike; corolla
tubes about; 26 mm. long. Plants of Chihuahua....................................................A. aurantiaca
CC. Lower surfaces of leaves glabrous, or if pubescent, the hair not feltlike,the
individual hairs evident.
D. Corolla tubes 19 mm. long or more
E. Calyx tubes 4-5 mm. long...............................................................A. coccinea
EE. Calyx tubes 6,5-11,5 mm. long
F. Upper lip of calyces usualyy 2,5.4 mm. long; leaves mostly deltoid
and crenate througout; calyces usually deep rose-purplle throughout;
stems from a woody caudex; plants ranging from Durango
northward to Arizona...........................................................................A. Barberi
FF. Upper lip of calyces usually 3,5-6 mm. long; leaves deltoid
lanceolate and often serrate only below the middle; stems from
creeping rhizomes; plants ranging from Zacatecas southward
to Puebla...............................................................................................A. mexicana
DD. Corolla tubes usually less than 18 mm. in length.
E. Calyces 8 mm. long or less (see also A pallidiflora).
F. Corollas 15-18 mm. long, twice the length of the calyces,
slender...............................................................................................A. Pringlei
FF. Corollas 12 mm. long or less, the tube but little excerted
beyond the calyx teeth.......................................................................A. breviflora
EE. Calyces 8-10 mm. long, or if shorter, then Texan plants; corollas
mostly 11-18 mm. long.
F. Plants of eastern Mexico from Nuevo Leon to Vera Cruz....A. Palmerie
FF. Plants of the southwestern United States and adjacent Mexico,
southward to Durango.
G. Corollas usually about twice as long as the calyces, their
tubes 13-18 mm. long; calyces deep rose purple; calyx
teeth subulate, very acute, 3-4 mm. long; plants ranging
from S. Arizona to durango.....................................A. pallidiflora subsp. Mearnsii
GG. Corollas usually not more than half as long as the calyces,
or if twice as long, the calyx teeth deltoid, 1-2 mm. long;
calyces rose color or green.
H. Calyx tubes 5-8 mm. long; Texas plants the teeth usually
tending to flare somewhat.................................................A. p. subsp. Havardi
HH. Calyx tubes 5-8 mm. long, the teeth seldom tending to flare.
J. Calyces green, with whitish teeth, the corollas pallid
or whitish................................................................A. p. subsp. typica
JJ. Calyces rose, or if green, usually with rose colored teeth;
corollas rose...........................................................A. p. subsp. neomexicana
Seitenanfang/Top Agastache Schlüssel / Key -Arten/species Startseite der Labiatae-Sammlungzuletzt geändert: 10/11/2000