. Conservation strategy for Silene spaldingii (Spalding's catchfly) in Montana . Botany; Rare plants; Silene spaldingii. Figure 26. Map of EO #12. Vegetation Associated Dominant Species: Stipa richardsonii, Festuca scabrella, Lithospermum ruderale and Symphoricarpos albus (common snowberry). Exotic Species: Potentilla recta, Centaurea maculosa and Poa pratensis. August 21, 2005. Survey Data First Observation: August 21, 2005 Last Observation: August 21, 2005 Table 7. Survey data for EO #12. Year Total SP1 SP2 SP3 2005 18 mature plants 12 2 4 This small population was discovered in 2005 on an i
. Conservation strategy for Silene spaldingii (Spalding's catchfly) in Montana . Botany; Rare plants; Silene spaldingii. Figure 26. Map of EO #12. Vegetation Associated Dominant Species: Stipa richardsonii, Festuca scabrella, Lithospermum ruderale and Symphoricarpos albus (common snowberry). Exotic Species: Potentilla recta, Centaurea maculosa and Poa pratensis. August 21, 2005. Survey Data First Observation: August 21, 2005 Last Observation: August 21, 2005 Table 7. Survey data for EO #12. Year Total SP1 SP2 SP3 2005 18 mature plants 12 2 4 This small population was discovered in 2005 on an isolated section of Montana State Trust Land approximately three kilometers west of Eureka. S. spaldingii plants occur along north-facing draws and slopes in three subpopulations, occupying an area of two hectares. Cattle were grazing the section during the survey, though not generally in areas where S. spaldingii was growing. Associated dominant species include Stipa richardsonii, Festuca scabrella, Lithospermum ruderale and Symphoricarpos albus. Few invasive weeds were present, though Potentilla recta and Centaurea maculosa both occurred in minor amounts. Poa pratensis was abundant in some areas but not directly at the observed S. spaldingii locations. Overall, the condition of the habitat at this site is good, though the bunchgrasses are dense and wolfy with heavy thatch build-up. This may result in increased competition compared to historical conditions that may be detrimental to the continued survival and reproduction of S. spaldingii at this location. Prescribed burning at the site may be necessary to re-invigorate the population and decrease competition and thatch build-up from native bunchgrasses. The high-quality, intact grasslands on this state owned section increase the conservation value of the population and may increase the probability of long-term beneficial management options. Short- and long-term grazing plans for the site are unknown. Additional potential suita
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Keywords: ., bhlcollection, bookcollectionamericana, bookle, booksubjectbotany
