Identificaciones de carexobnupta

Flowering Blue Oaks, scattered and growing individually, on dry, grassy, rolling hills in Pinnacles National Park.

Blue Oak (Quercus douglasii) Endemic to California: Native and occurs nowhere else.

Calflora (with species distribution map) https://www.calflora.org/app/taxon?crn=6990

Oak Tree Species I.D. and Ecology: https://oaks.cnr.berkeley.edu/oak-tree-species-id-ecology/
"Common names: Blue, white, mountain, rock, iron, post, jack, Douglas
Height: Usually 20-60 ft.; tallest over 90 ft. . ."

Oaks of California, B. Pavlik, P. Muick, S. Johnson, M. Popper, 1991, pp. 46, 16-18.

Blue Oak (Quercus douglasii), per Jepson eFlora: https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=40581
Native. "Habit: Tree 6--20 m, deciduous; trunk bark checkered into thin scales, +- gray. Leaf: 3--6(8) cm; petiole 3--9 mm; blade oblong to obovate, adaxially dull, blue-green, abaxially puberulent, pale blue-green, tip generally rounded, margin +- entire, wavy, or +- lobed. Fruit: cup 12--20 mm wide, 6--10 mm deep, cup- to bowl-shaped, scales +- tubercled; nut 20--35 mm, ovoid to subcylindric, distally acute to +- obtuse, shell glabrous inside; mature in year 1. Ecology: Dry slopes, interior foothills, woodland; Elevation: < 1590 m. Flowering Time: April--May. Note: Hybridizes with Quercus garryana (Quercus ×eplingii C.H. Mull.), Quercus john-tuckeri (Quercus ×alvordiana), Quercus lobata (Quercus ×jolonensis Sarg.)."
Jepson eFlora https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=40581

Quercus (Oak) are in the Beech (Fagaceae) family.
Those found in Monterey County are in three groups: Red (or Black) Oaks, Intermediate Oaks, and White Oaks. Red Oaks and Intermediate Oaks have acorns that generally mature over a 2 year period (Coast Live Oak is an exception to this rule). White Oaks have acorns that mature in a single season. Most Red Oaks and Intermediate Oaks are evergreen (California Black Oak being the exception). White Oaks may be either evergreen or deciduous. Hybrid forms are common. All oaks are monoecious, with conspicuous male flowers. Female flowers are found in the axils of the leaves near the tips of the new stems.

Monterey County Wildflowers: https://montereywildflowers.com/tree-fagaceae-quercus/

Field guide for CA Tree Oaks written, designed, and illustrated by Joshua Zupan and free to download here:
https://joshuazupan.com/portfolio/tree-oaks-of-california-a-field-guide

Field Guide to Insects and Diseases of California Oaks, Swiecki, Tedmund J. and Bernhardt, Elizabeth, USDA, 2006