Crataegus sheila-phippsiae var. saskatchewanensis
J. Bot. Res. Inst. Texas 1: 1079, plate 7.4c, fig. 25. 2007.
Common names: Saskatchewan hawthorn
Endemic
Plants shrubby, thicket-forming, 15–30 dm. Stems: thorns on twigs 3–6 cm. Leaf-blades 2–4 (–5) cm, at early anthesis little larger than flowers. Flowers: anthers white to cream. Pomes orange-red to bright red.
Phenology: Flowering May–Jun; fruiting Aug–Sep.
Habitat: Thickets
Elevation: 700–1000 m
Discussion
The main range of var. saskatchewanensis is the Cypress Hills; records are known also from the prairie regions of southern Saskatchewan. The differences from the type variety are considerable and constant, and var. saskatchewanensis is perhaps more similar to Crataegus chrysocarpa var. chrysocarpa although where sympatric its fruit is larger.
Selected References
None.
Lower Taxa
None.
... more about "Crataegus sheila-phippsiae var. saskatchewanensis"
aggregated +
epigynous +
dehiscent +
medium +
flattened-scaly +
orangebrown +
exposed +
stipuliform +
cuneate +
green +
1.6-2 +
mature +
mid +
thin-chartaceous +
matte +
rhombic +
? (?) +
thin +
leafy +
absent +
symmetric +
caducous +
subherbaceous +
absent +
numerous +
falcate +
young +
spreading +
woody +
simple +
lobed +
Saskatchewan hawthorn +
Sask. +
aggregated +
absent +
absent +
hard +
anthesis +
larger +
aggregated +
mature +
fascicles +
determinate +
glabrous +
shiny +
persistent +
glabrous +
constricted +
3-18-flowered +
axillary +
crassinucellate +
stipitate-glandular +
compound +
alternate +
deciduous +
horizontal +
prominent +
absent +
? (?) +
dominant +
sessile-glandular +
serrate +
free +
earlier +
glandular-serrate +
crenate +
absent +
aggregated +
superposed +
monopodial +
corymbose +
convex +
absent +
epigynous +
post-mature +
pubescent +
absent +
1;250 +
longitudinal +
exposed +
thin +
pruinose +
glabrous +
bright +
suborbicular +
J. Bot. Res. Inst. Texas +
2007 +
grooved +
plane +
nonaccrescent +
not arillate +
2;1 +
sessile +
persistent +
spreading +
1/2;2/3 +
triangular +
annual +
absent +
woody +
grooved +
eroded +
absent +
pitted +
matte +
Endemic +
usually shorter +
spreading +
capitate +
pinnate +
deciduous +
free +
absent +
persistent +
distinct +
adnate +
terminal +
elongate +
Crataegus sheila-phippsiae var. saskatchewanensis +
Crataegus sheila-phippsiae +
variety +
compound +
straight +
deep +
recurved +
shiny +
pinnate +
young +
small +
developed +
absent +
inconspicuous +
minute +
fibrous +
absent +
thorny +
straight +
determinate +
numerous +
unarmed +
multistemmed +
perennial +
incised +
narrower +