Campus Plants - Page 25

Each "thumbnail" image below is linked to a larger photograph.

Tipuana tipu, Fabaceae.  Tree from South America.  The winged fruits are strikingly similar to those of maples and represent an interesting example of convergent evolution of wind dispersed propagules.
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Tradescantia spathacea, Moses-in-a-basket, oyster plant.  A low growing herb from tropical America with clustered sword-like purplish (less commonly green) leaves to one foot long. Flowers white, hidden in a purple boat-shaped bract. Location: St. John courtyard.
Trema orientalis, Ulmaceae, gunpowder tree, charcoal tree. Tree from S.E. Asia and Polynesia with fine-toothed, unequal sided leaves in two rows on the long, spreading branchlets, flowers tiny, often of one sex, fruits black, about an eighth of an inch long. Location: Along Manoa Stream, opposite Hale Aloha.
Tridax procumbens, Asteraceae, tridax, coat buttons. Annual or perennial weed from Central America, with solitary, long-stalked, yellow or yellow and white flowering heads. Leaves used as insecticide in Central America. Location: Waste places; parking lot makai of Auxiliary Services.
Trimezia martinicensis, Iridaceae, trimeza. Ornamental herb from the West Indies with blade-like leaves folded lenthwise and clasping the stem; flowers yellow with brownish to purplish basal markings. Location: mauka side of Auxiliary Services.
Triphasia trifolia, Rutaceae, lime berry. Spiny shrub from southeast Asia with dark green, 3-parted leaves, small white flowers, and ovoid to globose reddish fruits a little more than 1/2 inch long. Location: Between Sherman and Pope Greenhouses; Student Health Center.
Triplaris surinamensis, Polygonaceae, long John. Narrow, columnar tree from South America with hollow stems in which ants dwell. The fruits are 3-winged and are wind dispersed like miniature helicopters. Location: Spalding side of Snyder. The green arrows in the photo on the left point to a male tree in the foreground and the red arrows to a female tree of this dioecious species in the left background. Pistillate flowers and developing 3-winged fruits can be seen in the top right photo while male inflorescences are shown in the lower right photo.
Tristellateia australasiae, ornamental liana from SE Asia to New Caledonia. Location:  on fence between Mid-Pac and UH Campus, Ewa of Biomed.
Turnera ulmifolia, Turneraceae, yellow alder. Coarse herb or shrub from the West Indies and tropical America with elm-like leaves and conspicuous, yellow flowers. Becoming popular in landscaping and naturalizing in dry, disturbed sites in Hawaii. Location: St. John courtyard, Makai-Ewa corner of Farrington and Maile Way.
Verbesina encelioides, Asteraceae, golden crown-beard. Herb with large yellow flowering heads, from Mexico and S.W. U.S., first recorded on Maui by Hillebrand in mid 1800's. Now a common weed. Location: Waste places; HIG; Quarry; Diamond Head.
Vitex rotundifolia, Verbenaceae, beach vitex; kolokolo kahakai. Low coastal shrub native to Hawaii and found through the Pacific to Australia and Asia. The aromatic leaves are rounded, up to about 2 1/2 inches long, and arranged in pairs The flowers are bluish purple, about half an inch long. At maturity the fruit is bluish-black and about 1/4 inch in diameter. The species has been used medicinally in Hawaii. Location: St. John courtyard.
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Waltheria indica, Sterculiaceae, hi'aloa. Bristly hairy herb or weak shrub with tiny pale yellow flowers, commonly found in disturbed sites, possibly indigenous to Hawaii. A root or bark concoction was used by the Hawaiians medicinally, especially for sore throats. Location: St. John courtyard; weedy areas on campus.
Youngia japonica, Asteraceae, oriental hawksbeard. Slender, weedy annual herb from southeastern Asia with milky sap; leaves clustered mostly to the base of the plant. The flowering heads are tiny, yellow. Location: Very common weed in waste areas.
Zamia floridanus, Cycadaceae, Florida arrowroot, coontie. Small, trunkless or short-trunked cycad from Florida with frond-like segmented leaves commonly less than 3 feet long. Male plants bear cones about 1-2 inches long; female plants bear cones about six inches long. Formerly, the beet-shaped underground stem constituted the principal starch component of the diet of Florida Indians. Location: St. John courtyard.
Zingiber zerumbet, Zingiberaceae, shampoo ginger.  The common name derives from the use of the fragrant fluid from the inflorescence as a shampoo by early Hawaiians.  They also used the leaves to flavor meat and the powdered rhizome as a perfume for kapa.  Location: St. John Courtyard.

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