familyRosaceae
subfamilyRosaceae subfam. Amygdaloideae
genusCrataegus
sectionCrataegus sect. Coccineae
speciesCrataegus collina
Crataegus collina var. hirtiflora
Novon 16: 385. 2006.
Endemic
Basionym: Crataegus hirtiflora Sargent Crataegus Missouri, 82. 1908 (as hertiflora)
Synonyms: C. macropoda Sargent
Leaf-blades broadly elliptic, 3–5 cm, 2/3 to nearly full grown at anthesis, length/width = 1.3, thin to chartaceous, lobes 0 or 1 per side, obscure, max LII 10%, lobe apex usually obtuse, margins serrate, teeth 0.5 mm, apex usually subacute, adaxial surface matte, short-pubescent young. Inflorescence branches short-pubescent. Flowers 15–18 mm diam.; stamens 15–20, anthers white or cream.
Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Pastures, fencerows, scrub, open woodlands
Elevation: 10–200 m
Discussion
Variety hirtiflora is common west of the Mississippi River.
Selected References
None.
Lower Taxa
None.
"thin" is not a number."short" is not a number."pubescent" is not a number."adnate" is not a number."dm" is not declared as a valid unit of measurement for this property.
... more about "Crataegus collina var. hirtiflora"
scabrous-pubescent +
aggregated +
short-pubescent +
epigynous +
dehiscent +
subacute +
flattened-scaly +
orangebrown +
exposed +
stipuliform +
tapering +
elliptic +
chartaceous +
1.4-2.5 +
coriaceous +
leafy +
absent +
symmetric +
caducous +
absent +
falcate +
membranous +
appressed-pubescent +
woody +
simple +
lobed +
aggregated +
absent +
absent +
hard +
aggregated +
mature +
fascicles +
determinate +
pubescent +
persistent +
obconic +
constricted +
2mm;6mm +
5-10-flowered +
short-pubescent +
axillary +
crassinucellate +
absent +
compound +
alternate +
deciduous +
horizontal +
prominent +
absent +
obscure +
dominant +
sessile +
serrate +
free +
earlier +
flowering +
short-stipitate-glandular +
absent +
aggregated +
superposed +
monopodial +
corymbose +
domed +
absent +
pubescent +
absent +
epigynous +
pale paper brown +
post-mature +
eglandular +
sessile-glandular +
absent +
1 cm10 mm <br />0.01 m <br /> (?) +
1;250 +
longitudinal +
exposed +
thin +
pruinose +
punctate +
glabrous +
orbicular +
Novon +
2006 +
grooved +
plane +
not arillate +
2;1 +
persistent +
much shorter +
glandular-serrate +
glabrous +
patent-reflexed +
triangular +
annual +
absent +
woody +
excavated +
eroded +
absent +
pitted +
plane +
shallow +
matte +
Endemic +
usually shorter +
15;20 +
spreading +
outer +
capitate +
pinnate +
deciduous +
free +
absent +
persistent +
distinct +
terminal +
elongate +
Crataegus collina var. hirtiflora +
Crataegus collina +
variety +
compound +
dark gray +
straight +
stout +
recurved +
slender +
pinnate +
young +
0.5 cm5 mm <br />0.005 m <br /> (?) +
developed +
absent +
inconspicuous +
minute +
fibrous +
absent +
thorny +
determinate +
unarmed +
perennial +
incised +
narrower +