Hey guys! For the 2nd field trip (02/23/2023), we went on an adventure to the Battery-to-Buffs trail at the Presidio, San Francisco. We took a look at more unique California Plant species (esp. Poison Oak), that thrive in the area. The commute was only a 12 minute car drive from the University of San Francisco. However, on this day the weather was quite unpredictable as it started hailing for the first 10 minutes! As we hiked further up the trail, the weather began to clear up, and the stunning views made it worth the effort. Below are some pictures of the hike as well as some plant species that caught my attention!
Taxon Name: Toxicodendron diversilobum
Taxon Common Name: Poison Oak
Parent Taxon: Anacardiaceae
Description:
Habit: Vine or shrub. Ecology: Canyons, slopes, chaparral, coastal shrub, oak woodland.Stem: gray- to red-brown. Leaf: reddish leaves; compound leaf w/ 3 leaves; leathery. Fruit: spheric; glabrous, pink. Flower: sepals green; petals > sepals, generally ovate, yellow- to white-green
Taxon Name: Oemleria Cerasiformis
Taxon Common Name: Osoberry
Parent Taxon: Rosaceae
Description:
Habit: Shrub, small tree. Ecology: Canyons, lowland wet to dry open woodland, chaparral, coast to shaded conifer forest.Leaf: simple, deciduous, elliptic to narrow-obovate, leathery, margins generally entire. Inflorescence: pendent (petals facing down), tightly bunched/very dense
Taxon Name: Eschscholzia californica Cham.
Taxon Common Name: California Poppy
Parent Taxon: Papaveraceae
Description:
Habit: Annual (or perennial herb from heavy taproot), erect or spreading. Ecology: Grassy,Open Areas. Leaf: segments obtuse or acute, simple leaf that is highly dissected. Flower: bud erect, acute to long pointed, glabrous; petals (4) orange or yellow, bases are generally orange
