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Saturday - June 27, 2015
From: Tucson, AZ
Region: Southwest
Topic: Shrubs
Title: Male and Female Rhus virens Differences?
Answered by: Anne Van Nest
QUESTION:
I would like to plant a Rhus virens in my yard to attract birds. I want to make sure I get a female plant so there will be berries. How can I tell a male from a female plant?ANSWER:
Rhus virens is the Evergreen sumac and the Lady Bird Johnson Wildflower Center website says that it is a shrub or small tree, from 8-12 ft. in height with spreading branches. Its shiny, evergreen, pinnate foliage is tinged with pink in early spring and maroon after frost. Leaves are alternate, 2–5 1/2 inches long, with 5–9 fleshy leaflets on stiff stems. The 5-petaled, inconspicuous, greenish or white flowers grow in clusters 1–2 inches long at the end of stout branches. When the fruit matures in mid-September it is red, broader than long, and covered with fine hair.
Evergreen sumac can be used to make a nice, thick hedge or screen, but can grow tree-like with a long, straight trunk. Only female plants produce flowers and berries. It is fast growing, generally insect and disease-free, and drought-tolerant. Not a true evergreen – leaves are green through the winter, then are dropped, to be replaced within a week with a new crop.
I found a discussion about the male and female flowers at the Jim Conrad's Naturalist Newsletter website. Evergreen Sumac's flowers are unisexual, each sex appearing on a different tree -- the plants are dioecious. I think our picture must show male flowers, for in other pictures of flowers often the ovary is more apparent and the stamens are smaller.
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