Hey chlsbrns,,,
I NEVER knew this tidbit..I had read somewhere that certain plants were used in environmental remediation, but I would have never thought about plants being an "accumulator" for heavy metals like gold.
THANKS
Hit
On a side note I just read that rice is a great absorber of the arsenic that was once used to protect southern cotton fields. Export rice.
Ok.
These plants are called indicators. Thank you for helping with my growing list!
Horsetail
Desert Trumpet - delange.org
Eriogonum inflatum, Buckwheat Family: ( Polygonaceae ), Also known as Umbrella Plant, Bladder Stem, Indian Pipe Weed, or Guinagua.
The swollen stem makes this an unusual and easily remembered plant. The swelling is said to be caused by irritation from a moth larva that lives inside the hollow stem; this claim by Stone and Mason (1979) to the larval feeding of gall insects, is not supported by the scientific evidence. Greenhouse studies have shown that stems of this and other species in the genus inflate without the presence of any insects.
NOTE: Just about every gold prospector in Arizona knows that GOLD IS OFTEN FOUND IN THE GROUND WHERE THIS PLANT GROWS! We do prospecting and have found gold near this plant!
The very tiny yellow flowers are often not even noticed except in years of unusually favorable rainfall when thousands of these tiny flowers give a yellow glow to the desert. 2005 was such a year.
Height: Up To About 3 Feet Tall.
Flowers: Flowers yellow with green or red midribs, 1/8 inch, densely hirsute with coarse curved hairs; perianth lobes monomorphic, narrowly ovoid to ovate. Stamens exserted, 1/16 - 1/8 inch; filaments sparsely pubescent to glabrous. Achenes lenticular to trigonous, light brown to brown, 1/8 - 3/16 inch, glabrous.
Blooming Time: March - June, Also Sometimes In September - October.
Leaves: Leaves basal; leaf-blades oblong-ovate to oblong or rounded to reniform, 1/2 - 3 inches × 1/2 - 2 1/2 inches, short-hirsute on both surfaces, sometimes less so to glabrous adaxially; margins occasionally undulate; petioles 1/4 - 2 1/2 inches, hirsute. Flowering stems erect, to 4 feet, often inflate , occasionally hirsute basally. Inflorescences cymose, open, 1/8 inch, occasionally with inflate branches; bracts 3, scalelike, 1/32 inch. Peduncles filiform to capillary, erect, straight, 1/32 - 1/16 inch. Involucres turbinate, 1/64 inch wide; teeth five, 1/64 inch.
Found: Arizona.
Elevation: 0 - 6600 Feet.
Habitat: The desert environs, where it occupies open, gravelly, rocky areas and roadsides.
Cactus Barrel - delange.org
Barrel Cactus. Ferocactus wislizenii, Cactus Family ( Cactaceae ), Barrel Cactus. Also called Arizona Barrel Cactus, Candy Barrel Cactus, Fishhook Barrel Cactus, Visnage Compass, Barrel Cactus, Wislizenus's Barrel Cactus, Biznaga, Bisnagre.
The plant leans toward the sun and thus turns south. It has the name Compass Plant because of that tendancy. Several desert plants have the same tendancy.
The plant is filled with a slippery alkaline solution instead of water. I tried it and it tastes awful. The fruits attract insects and rodents. The pulp can be used for cactus candy. There are three species in Arizona.
Cactus thorns are modified leaves. Their shape conserves water and adds protection to the cactus plant.
Height: Up To About 11' tall. Most are 2' to 3' Tall.
Stem: Up to 2' in diameter consisting of an interior framework of about 20 - 30 or more woody ribs supports the spongy tissue.
Flowers: Yellow, Orange, Red. About 2 1/2 -inch-wide flowers bloom during April - August. Day blooming, forming a crown of flowers on top of the cactus.
Flowering Time: April - August.
Fruit: The fruit is up to 1 3/4"X 1 3/8" in diameter, it is yellow and fleshy, it later dries becoming scale looking and brown.
Thorns: Gray to Red in Color, forming dense clusters along the ribs. They are large and slightly hooked.
Found: Lower Elevations of the Sonoran Desert of Arizona and California. Also Sonora, Mexico. On sandy desert, and gravel slopes in the deserts and grass lands.
Sun Exposure: Full Sun
Elevation: 600 - 4,500 Feet.
Habitat: On sandy desert, and gravel slopes in the deserts and grass lands. Common xeriscape landscape plant.
Clover
Mustard?