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Malheur Experiment Station
Oregon State University

Adenocaulon bicolor

pathfinder, trail plant (Adenocaulon bicolor)
Adenocaulon bicolor
Common Names pathfinder, trail plant
Family Composites, Sunflower
Flower Color Green, mixed
Plant Type Forb
Location McCall
Native Yes
Weed No

pathfinder, trail plant (Adenocaulon bicolor) pathfinder, trail plant (Adenocaulon bicolor) pathfinder, trail plant (Adenocaulon bicolor) pathfinder, trail plant (Adenocaulon bicolor)

Pathfinder

Adenocaulon bicolor is commonly known as Pathfinder or Trail plant. Pathfinder grows in moist organic sites of forests lower than 6500 feet elevation. Pathfinder is a perennial that regenerates each year, forming what appears to be a low hovering mat of leaves in the shadowed areas under trees or along fallen logs. Pathfinders’ value is the shade it’s 4-6 inch wide leaves provide, for retaining moisture in the duff layer of the forest floor, which assists in the decomposition of organic matter. Although the leaves are the most prominate part of this forb there is a single slender stem that shoots up to about three feet tall with raceme inflorescence (stem growth arrangement, see photos) that extends out to tiny white flowers that make there appearance from June to September. Pathfinder’s tiny fruit that grows at the end of the inflorescent stem has glandular stocks, which means they have tiny hairs that cling to pantlegs to be transported through the forests of Montana, west to Alaska and south threw the California forests.

Historical aspect; Pathfinder is a plant that was observed by trackers of convicts and lost people. Its’ importance in tracking was the extreme difference of the upper and lower leaf surfaces; the top surface being dark green and the underside being a white wooly appearance. When the leaf is overturned it is a dead give away that a passerby had been through the patch of leaves.

pathfinder, trail plant (D.L.C. 12-15-04)


For additional information please send an e-mail request to:
Dr. Clinton C. Shock
Clinton.Shock@oregonstate.edu

Malheur Agricultural Experiment Station
595 Onion Avenue
Ontario, OR 97914
(541) 889-2174
FAX (541) 889-7831

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