Xeriscape Landscaping Plants For The Arizona Desert Environment.
Pictures, Photos, Information, Descriptions,
Images, & Reviews.
Trees.

Red Cap Gum: Eucalyptus Trees,
Eucalyptus erythrocorys.

We Are Proud Of Our SafeSurf Rating!

Click On Any Of The Following Links By Amazon.Com
For Books, & Videos About Wildflowers Of Arizona & The Southwest USA. No Obligation!

Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.
Red Cap Gum: Eucalyptus, Eucalyptus erythrocorys.
Photo Taken July 29, 2006.
Arrowhead Ranch, Glendale, Arizona.
Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.
Red Cap Gum: Eucalyptus, Eucalyptus erythrocorys.
Photo Taken July 29, 2006.
Vacant Lot, 59th. Ave. & Thunderbird Road. Glendale, Arizona.
Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.
Red Cap Gum: Eucalyptus.
Eucalyptus erythrocorys.
Red Cap Gum: Eucalyptus.
Eucalyptus erythrocorys.
Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.
Red Cap Gum: Eucalyptus
Eucalyptus erythrocorys
Red Cap Gum: Eucalyptus.
Eucalyptus erythrocorys.
Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.Red Cap Gum Eucalyptus Tree, Eucalyptus erythrocorys. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet. Xeriscape Landscaping Plants For The Arizona Desert Environment. Pictures, Photos, Information, Descriptions, Images, & Reviews. Trees.
Red Cap Gum: Eucalyptus.
Eucalyptus erythrocorys.
Seed Pod.
Red Cap Gum: Eucalyptus.
Eucalyptus erythrocorys.

Red Cap Gum: Eucalyptus Trees.
Eucalyptus erythrocorys, Myrtle Family ( Myrtaceae ), Red Cap Gum: Eucalyptus. Also Called: Illyarrie, Bookara Gum, Helmet Nut Gum, Red Helmet.

We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia.

The red cap gum Eucalyptus erythrocorys is one of Australia's many native gum trees, so called because of their sticky, aromatic sap.

This tree gets its name from the bright red, strawberry-colored caps, or buds, that cover of the flower bud.

The buds look like a bishop's biretta and they fall off as the clusters of yellow flowers appear.

The redish brown, woody, seed capsules that result from the flowers may stay on the tree for many years, until they dry out enough to release their seeds.


Quick Notes:

Height: Up to about 25 - 30 feet. About a 20 foot spread. Fast Growing.

Trunk: 4 to 16 inches in diameter.

Bark: An attractive rough trunk; creamy, flaky with a few rough patches of loose brown bark.

Flowers: The flower may be 2 - 3 inches across with four tufts of golden stamens at each of the "corners" and are in groups of three. The flowers are preceded by large rectangular scarlet buds and are followed by large helmet-shaped fruits. The stamens are in four bundles each at the corner of the squareish flower. The flowers have a bright red operculum.

Blooming Time: Mid July to November.

Seed Pod: Seedpods are woody and massive capsules (4 to 5 cm diameter), bell-shaped, and strongly ridged, and the depressed center of the fruit is glossy red. The dried stamens often persist on the maturing fruits, and fruits eventually open at the top by way of four splits.

Seeds: Dark brown seed which germinates readily.

Leaves: Dark green, alternate, long, lance shaped, up to 10 inches long, 1 5/8 inches wide, often sickle-shaped, with a red petiole. juvenile leaves are opposite, much shorter, wider, and hairy.

Found: Native of Australa north of Perth, usually found upon the undulating limestony areas near Dongara, and also north of the Kalbarri National Park. Dongara is sometimes called "The Rock Lobster Capital Of The World."

Elevation: Native below 2,400 feet. Average about 1,600 feet. Some near Dongara are at about 75 feet.

Hardiness:
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Sun Exposure:
Full Sun

Habitat: In its native growth areas it is found in limestone soils. Since it commonly grows on limestone soils it is well adapted to the alkaline conditions in Arizona.

Miscellaneous: Photos Taken July 29, 2006. Arrowhead Ranch, & vacant lot in Glendale, Arizona. A low water use landscaping plant in the Phoenix and Tucson areas. Long time used in Phoenix and Tucson for landscaping. However, not common to the areas. It responds well to pruning.

We Are Proud Of Our SafeSurf Rating!

Click On Any Of The Following Links By Amazon.Com
For Books, & Videos About Wildflowers Of Arizona & The Southwest USA. No Obligation!


Back To Arizona Xeriscape Landscaping Main Page.

Back To Xeriscape Trees Page Three.


Back To Arizona Wild Flowers Home Page


Back To DeLange Home Page

© 1966 - Present, Audrey, Eve, & George DeLange