Odontostomum hartwegii

Torrey

Pacif. Railr. Rep. 4(5): 150. 1857.

IllustratedEndemic
Treatment appears in FNA Volume 26. Treatment on page 204. Mentioned on page 202, 205.

Stems to 5.5 dm. Bulbs subglobose, slightly broader than tall, 1–3 cm wide. Leaves basal and cauline, tapering gradually to attenuate apex; cauline leaves smaller than basal, gradually reduced to bracts subtending panicle branches; blade (6.5–) 10–25 × (0.2–) 0.5–0.8 cm. Inflorescences 0–4-branched, each branch (1–) 5–40-flowered; bracts subulate, ± equaling pedicels. Flowers: perianth creamy white to yellowish; perianth-tube 4–6 mm, limb lobes ca. as long; outer 3 tepals 5–7-veined, ± lanceolate, apex acute; inner 3 tepals 3–5-veined, ± oblanceolate, apex obtuse; filaments 1–2 mm; staminodes 0.5–1 mm; pedicels 3–5 mm. Capsules ca. 4 mm wide.


Phenology: Flowering spring (mid Apr–mid Jun).
Habitat: Grassland, savanna with blue oak (Quercus douglasii Hooker & Arnott) or digger pine (Pinus sabiniana Douglas ex D. Don), usually in well-drained, rocky clay soils (often serpentine), but sometimes on vernal pool margins
Elevation: 0–600 m

Discussion

Odontostomum hartwegii ranges from Shasta County south to Mariposa County along the Sierra foothills, and locally in the Coast Ranges in Tehama and Napa counties. It is more frequent in the northern portion of this range, from Butte to Shasta counties.

Selected References

None.

Lower Taxa

None.

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

... more about "Odontostomum hartwegii"
cordate +  and linear +
loculicidal +
obtuse +, acute +  and attenuate +
Mark W. Skinner +
Torrey +
whorled +, opposite +  and alternate +
dilated +
reticulate-veined +  and parallel-veined +
6.5 cm65 mm <br />0.065 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sheathing +  and involucrate +
1;several +
subulate +
(1-)5-40-flowered +
tunicate +  and cormose +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
4 cm40 mm <br />0.04 m <br /> (?) +
reduced +  and smaller +
0–600 m +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
sessile +  and pedicellate +
inner +  and outer +
unisexual +  and bisexual +
indehiscent +, septicidal +  and loculicidal +
membranaceous +  and leathery +
Grassland, savanna with blue oak (Quercus douglasii Hooker & Arnott) or digger pine (Pinus sabiniana Douglas ex D. Don), usually in well-drained, rocky clay soils (often serpentine), but sometimes on vernal pool margins +
persistent +
cauline +  and basal +
tapering +
globose +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
zygomorphic +  and actinomorphic +
creamy white +  and yellowish +
Flowering spring (mid Apr–mid Jun). +
Pacif. Railr. Rep. +
wind-distributed +
obovoid +
Illustrated +  and Endemic +
adnate +  and free +
staminodial +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
flexuous +
deciduous +
3-fid +  and filiform +
Odontostomum hartwegii +
Odontostomum +
species +
3-5-veined +  and 5-7-veined +
alternating +  and opposite +
oblanceolate +  and lanceolate +
sepaloid +  and petaloid +
narrower +
obovoid +
bulbose +  and scapose +
3 +  and 2 +