Known distribution of
Horizontal stems (rhizomes) subterranean. Upright shoots treelike, many branched, branchlets numerous and strongly differentiated, annual bud constrictions absent, leaves spreading, pale green below lateral branchlets, prickly needlelike, 1/8 X <1/16 inch. Lateral branchlets round in cross sectio...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.214.2099 http://www1.dnr.wa.gov/nhp/refdesk/fguide/pdf/lyde.pdf |
| Summary: | Horizontal stems (rhizomes) subterranean. Upright shoots treelike, many branched, branchlets numerous and strongly differentiated, annual bud constrictions absent, leaves spreading, pale green below lateral branchlets, prickly needlelike, 1/8 X <1/16 inch. Lateral branchlets round in cross section, to 1/3 inch in diameter, annual bud constrictions inconspicuous, leaves spreading to ascending, pale green, in 6 ranks, 2 upperside, 2 lateral, and 2 underside, equal in size, linear 1/16 to inch X <1/16 inch, margins entire, apex acuminate, lacking hair tip. Strobili sessile, 1-7 on tip of upright shoot, to 2 inches. Sporophylls 1/8 X 1/8 inch, apex short, acute, abruptly narrowing. Identification Tips: L. annotinum and L. inundatum have mostly unbranched stems and leafy, surface growing runners. Phenology: Produces spores in June and July. Range: Occurs from Alaska to Newfoundland, south to Washington |
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