Identificaciones de lysandra

Usually a tall shrub or small tree, Pacific willow here resprouting from near ground level presumably after having been cut down due to an impactful disturbance history such as clearing for road building. This site lies in a moist meadow at the southwest edge of the Spanish Peaks near Jack Creek Road, Madison Range, Madison County, Montana. The long-acuminate leaf blades and petioles that produced glands or extra-floral nectaries at the distal end including at the base of the leaf blade are distinctions of this willow species. Usually, the leaf blades are distinctly glaucous on the undersurfaces and bright green on the upper surfaces, as in this population.

Flat site on sandy soil; the plant habit is open, not compact; leaves are radially symmetric on the stems and are very slender lanceolate; leaf margin cilia are widely spreading distally. This species is abundant in this local area.

Fowl bluegrass in moist site in the open understory of young lodgepole pine at the southwest end of the Spanish Peaks, Madison Range, Madison County, Montana. A bunchgrass of moist sites, a stature averaging often 0.5-1 m tall, leaf blades born from the stem (no basal leaf bunch), and an open panicle of small spikelets each averaging about 3 mm long and with only a few florets are distinguishing of this bluegrass species.

Meadow foxtail growing in moist meadows surrounded by mostly subalpine fir and some lodgepole pine at the southwest edge of the Spanish Peaks, Madison Range, Madison County, Montana. Conspicuous lemma awns each exserted from a pair of glumes distinguish meadow foxtail from creeping foxtail (A. arundinaceus).

Bluejoing growing in moist meadows surrounded by mostly subalpine fir and some lodgepole pine at the southwest edge of the Spanish Peaks, Madison Range, Madison County, Montana. Bluejoint is perhaps one of the most common grasses in dry to wet meadow, as well as open understory and forest edges, in this area. Well developed leaf blades born only from the stem are in part diagnostic.

Blue stickseed in an upper elevation montane dry meadow at the southwest edge of the Spanish Peaks near Jack Creek Road, Madison Range, Madison County, Montana. Well developed leaves in a basal rosette (at the time of flowering and fruiting), clusters of 4 large nutlets, each which is about 4 mm long with faces lined with marginal prickles (and not connected to each other at the base), are distinguishing of this Hackelia species.

Bracted lousewort growing in dry open understory and adjacent dry meadows of subalpine fir and lodgepole pine at the southwest edge of the Spanish Peaks near Jack Creek Road, Madison Range, Madison County, Montana. A tall stature, upwards of 0.5 m tall, with leafy stems (few if any basal leaves), leaves deeply pinnately lobed, and flowers with acuminate sepal lobes and often burgundy corollas distinguish this as Pedicularis bracteosa var. bracteosa.

Bluejoint in the open understory and forest edge of young lodgepole pine at the southwest end of the Spanish Peaks, Madison Range, Madison County, Montana. A rhizomatous spreading growth habit, leaf blades all born from the stem (and not from a basal bunch), and a consistently glabrous collar region at the base of the leaf blade distinguish bluejoint from the similar pinegrass, Calamagrostis rubescens.