Ivesia rhypara var. shellyi

Ertter

Syst. Bot. 14: 239, fig. 4. 1989.

Common names: Shelly’s ivesia
Conservation concernEndemic
Treatment appears in FNA Volume 9. Treatment on page 229.

Plants 2–10 (–15) cm diam. Stems (0.1–) 0.2–0.5 (–0.9) dm, equal to or exceeding leaves by no more than 2 (–7) cm. Inflorescences 5–30 (–60) -flowered, 0.5–2 (–5) cm diam. 2n = 28.


Phenology: Flowering summer.
Habitat: Overtly petrophytic in cracks and crevices of pumiceous welded ash-flow tuff boulders and outcrops, in sagebrush communities
Elevation: 1300–1600 m

Discussion

Of conservation concern.

In addition to their more overtly petrophytic habit, plants of var. shellyi are generally smaller and more compact than those of var. rhypara. It is known only from the Rehart and Venator canyons area along the border of Harney and Lake counties in southeastern Oregon.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

0.16 cm1.6 mm <br />0.0016 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1.2mm +  and 1.6mm +
yellow +  and maroon +
shorter than wide +  and longer +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Barbara Ertter +  and James L. Reveal +
Ertter +
compound +  and simple +
opposite +  and alternate +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Setosae +
20 cm200 mm <br />0.2 m <br /> (25 cm250 mm <br />0.25 m <br />) +
narrowly oblong +  and filiform planar +
0.5 cm5 mm <br />0.005 m <br /> (20 cm200 mm <br />0.2 m <br />) +
reduced +
elongate +
free +  and distinct +
branched +  and simple +
Shelly’s ivesia +
not +  and aggregated +
1300–1600 m +
linear +  and elliptic +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
deciduous +
obliquely ovoid +  and reniform +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
loose +  and capitate +
Overtly petrophytic in cracks and crevices of pumiceous welded ash-flow tuff boulders and outcrops, in sagebrush communities +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
5-30(-60)-flowered +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
crassinucellate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
opposite +  and alternate +
winter-marcescent +
deciduous +  and persistent +
separate +  and overlapping +
, +  and distinct +
distinguishable +
lobed +  and toothed +
orbiculate +, obovate +  and elliptic +
verticillate +
toothed +, unlobed +  and lobed +
inferior +  and superior +
clustered +, biseriate +  and superposed +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering summer. +
adnate +, free +, connate +  and distinct +
not arillate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
persistent +
free +  and distinct +
erect +  and spreading +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
reddish +, grayish +  and green +
pendent +  and erect +
2 +  and 20 +
palmate +  and pinnate +
deciduous +
distinct +
subterminal +
filiform +
rough-thickened +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Saxosae +, Ivesia sect. Saxosae +, Potentilla sect. Saxosae +, Potentilla subg. Purpusia +  and Undefined sect. Purpusia +
not fusiform +
Ivesia rhypara var. shellyi +
Ivesia rhypara +
variety +
inconspicuous +
stipelike +, elongate +, less flat +  and conic or turbinate +
enlarged +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
glabrate +  and sparsely densely glandular-puberulent +