Physiological and morphological responses to shade and nutrient additions of Claytonia
virginica (Portulacaceae): implications from the vernal dam, hypothesis.
Forest understory plants [ILLUSTRATION FOR FIGURES 7 AND 8 OMITTED] also are predominantly those of mesic deciduous forest (Curtis 1959), including the shrub Zanthoxylum americanum and the herbs Aralia racemosa, Campanula americana, Claytonia
. This delightful little plant is an unsung hero of winter gardening.
For either frequency or abundance, only one statistically significant difference was found wherein browsed plots were favored over fenced plots: spring-beauty (Claytonia
virginica) occurred only in browsed plots (Fig.
Interrupted fern Osmundea claytonia
is abundant in wooded areas across much of the range of ostrich fern and likes partial shade on rich, moist to mucky soil.
Yet, with a large number of disjunct species and species endemic to Alaska and the Yukon (Stellaria alaskana, Salix setchelliana, Androsace alaskana, Castilleja yukonis, Artemisia alaskana, Aster yukonensis, and Claytonia
bostockii) (Murray and Douglas, 1980), substantial ecological diversity remains.
f weight weight Achillea millefolium 0.04 0.13 1 - - - Alstroemeria aurea * - - - - - - Berberis buxifolia * - - - - - - Brassica rapa 2.88 3.90 18 2.83 4.73 26 Cichorius intybus - - - 1.39 3.10 1 Cirsium vulgare - - - 0.07 0.16 1 Claytonia
perfoliata - - - - - - Cytisus scoparius - - - - - - Chenopodium album 3.16 6.36 5 14.09 21.00 6 Chrysanthemum leucanthemum 0.80 0.30 3 0.03 0.06 1 Hypochoeris radicata 0.44 0.96 4 1.12 0.66 11 Lactuca serriola 0.21 0.65 1 - - - Malus sylvestris 1.34 4.22 1 - - - Malva sylvestris 0.22 0.71 1 - - - Medicago lupulina - - - 0.03 0.06 1 Melilotus albus - - - 10.65 9.81 21 Mentha spp.
Many of the herbaceous species that occur in the same are spring ephemerals (e.g., Claytonia
virginica, Geranium maculatum, Mertensia virginica).
The most common herbs were Arenaria serpyllifolia, Capsella bursapastoris, Cardamine hirsuta, Cichorium intybus, Claytonia
virginica, Conium maculatum, Conyza canadensis, Draba verna, Erigeron annuus, Galinsoga quadriradiata, Geum canadense, Impatiens pallida, Lepidium virginicum, Medicago lupulina, Oxalis stricta, Plantago lanceolata, P.
Opposing natural selection from herbivores and pathogens may maintain floral-color variation in Claytonia
WILD EDIBLES: cactus pears, cattails, claytonia
(miner's lettuce), dandelion greens, fiddlehead ferns, lamb's quarters, morel mushrooms, nettles, pokeweed, purslane, ramps (wild leeks)
Typical genera of plants with species using this dispersal syndrome include Asarum, Claytonia
, Dentaria, Dicentra, Erythronium, Jeffersonia, Sanguinaria, Trillium, and Viola.
Evolution of rDNA in Claytonia
x canadensis (L.) Asch & Magnus Claytonia
Plants such as American land cress, claytonia
and lamb's lettuce are tough and will keep growing through the worst weather without protection.