Bailey & Bailey: Woody Plants of National Parks 



157 



some extent by deer, elk, and mountain sheep, particularly when other food 

 is scarce. The leaves are rather tough to be very palatable. 



Occurrence. — OLYMPIC, common, 1,000 to 5,000 feet: Lake Crescent; Seven Lakes 

 Basin; ridge south of Sentinel Peak, near Hayden Pass; Marmot Lake; Mount An- 

 geles. MOUNT RAINIER, common, 3,000 to 4,000 feet: head of Stevens Canyon; Stevens 

 Canyon burn; Shriner Peak; Crystal Peak, crater LAKE: southwest corner of park, 

 5,300 feet; lower Redblanket Creek; Castle Creek at west entrance. GLACIER, common, 

 3,200 to 6,000 feet: Belton; North Fork Flathead River road; trail to Avalanche 

 Lake; trail to Granite Park; east entrance; Going to the Sun Chalets; switchbacks on 

 east side of Swiftcurrent Pass; St. Mary Lake; Red Eagle Valley Two Medicine 

 Valley Cut Bank Valley. YELLOWSTONE. GRAND TETON, common: South Fork Cascade 

 Canyon. ROCKY MOUNTAIN, abundant at higher elevations on the west slope. MESA 

 VERDE: trail to Balcony House. BRYCE CANYON, rare along Rim Drive: Rainbow Point; 

 Natural Bridge. ZlON. in the forests on the plateaus, 6,000 to 7,000 feet: West Rim 

 trail, above ranger cabin. GRAND CANYON, on the North Rim, rare: Powell Saddle; 

 north end of Walhalla Plateau. 



Bladdernut Family 

 (Staphyleaceae) 



Sierra Bladdernut (Sta- 

 phyiea Botanderi Gray), fig. 

 90. — Erect shrub 3 to 10 feet 

 high; leaves divided into 3 leaf- 

 lets, the leaflets egg-shaped to 

 roundish with pointed tips, 1 

 to 21/2 inches long, smooth on 

 both sides, the margins finely 

 toothed; flowers white, borne in 

 drooping few-flowered clusters 

 at the ends of the branches; 

 fruit a bladder-like capsule, 1 

 to 2 inches long, 3-ceIled, the 

 cells 1- to 4-seeded. This shrub 

 is sometimes called California 

 balloon bush because of the inflated capsules. 



Occurrence. — YOSEMITE; near El Portal, 2,500 feet. sequo:a, about 2,500 to 4,500 

 feet: Paradise Creek; Cedar Creek, North ^ork Kaweah River; West of Panorama 

 Pomt; between Clough Cave and Garfield Grove of bigtrees. 



Fig. 90. Sierra bladdernut (5/ap/ip/ea 

 Bolanderi) . 



iViAPLE Family (Aceraceae) 



Maple (Acer L.) 



Maples are widely distributed and common trees or shrubs in the United 

 States, one or more species being found in each of our western national parks. 

 They are easily recognized by the palmately lobed or divided leaves and the 

 characteristic fruits borne in winged pairs. Most of the species furnish valu- 

 able food for animals, even during the winter when the leafless twigs may 

 be browsed. 



