. Bulletin of the Department of Agriculture. Agriculture; Agriculture. PLANT SUCCESSION" AND RANGE MANAGEMENT. 57 perennial plants on both of these protected plots, low larkspur has increased proportionately much more rapidly than any other; on the outside range the colonization of the low larkspur has been only m^oderately rapid and in proportion to that of other perennial plants. This difference in aggressiveness of larkspur is accounted for by the fact that the unprotected range is grazed b}" sheep prior to seed maturity.^ As larkspur is fairly palatable to sheep, onlj^ a sma
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. PLANT SUCCESSION" AND RANGE MANAGEMENT. 57 perennial plants on both of these protected plots, low larkspur has increased proportionately much more rapidly than any other; on the outside range the colonization of the low larkspur has been only m^oderately rapid and in proportion to that of other perennial plants. This difference in aggressiveness of larkspur is accounted for by the fact that the unprotected range is grazed b}" sheep prior to seed maturity.^ As larkspur is fairly palatable to sheep, onlj^ a small pro-. BâLarge mountain brome grass {Bromus marginatus). CâSlender-leaved collomia {Collomia lin- earis). DâLow larkspur {Delphinium menzlcs-ii). EâSweet sage (Artemisia discolor). FâSpiked fescue (Festuca confines). LâLow pea vine (Lathyrus Icucanthus). LaâEvening primrose (Lavaiixia fiava). NâChickweed {Alsine jamesiana). â â X â X â Fence. SâTansy mustard {iSophia incisa). Saâ^Mountain elder (Samhiictis microhot- rys). TâDandelion {Leontodon taraxacum). ThâMeadow rue {Thalictrum fcndleri). VâTongue-leaved violet (Viola linguae- folia). XâDouglas knotweed (Polygonum doug- lasii). YâPlantain (Plantago tweedyi). . â Dry gully. PâBlue foxglove (Pentstemon procerus). Fig. 22.âCharacter of vegetation on a formerly depleted stock driveway in process of recuperation. portion of the seed crop is matured on the open range, whereas maxi- mum seed production is secured on the protected area. Being small, comparatively heavy, and without special contrivances favoring dis- tribution by wind or attachment, the seeds drop near the parent plant, where they give rise to new individuals. Like certain other species previously discussed, low larkspur holds a more or less conspicuous place in the development of the vegetation 1 Most larkspurs are grazed with moderate relish by sheep, and, so far as known, with- out serious Please note that these images are extrac
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