V 4, No. 1, Fall 1990 – “Kelseya uniflora the MNSP ‘Mascot,’” recaps information published in earlier editions; “Research Natural Areas – Natural Yardsticks” announced the establishment of some new RNAs and described the program; and field trip reports included “Centennial Valley – Aspen Groves to Sandhills,” “Botanizing on Horseback” (on the Boulder River near Big Timber), “Fire Recovery: The Second Year” (Grayling Creek Drainage in YNP, and “Statewide Field Trip: Pine Butte Preserve to Gibson Reservoir”.
V 4, No. 2, Winter 1991 – “Sulphur Cinquefoil – An Introduced Weed to Equal Knapweed and Spurge by 2020?” by Peter M. Rice includes a thorough description of the plant and tips to distinguish it from P. gracilis; Peter Lesica discusses the “Form of Leaves” with observations as to the ecological factors that may be involved and includes references for further reading; field trip reports include, “Lee Metcalf Wildlife Refuge,” “Fire Lookout on Stark Mountain,” and an error correction related to the Gibson Reservoir trip reported in the previous issue; and a report on Nature Conservancy Awards to Peter Lesica, Elly Jones, Bob Anderson, and Anne Morely.
V 4, No. 3, Spring 1991 – “Algae in Montana’s Waters: There’s More to a Stream than Water and Fish,” by Loren Bahls offers an overview of the composition and importance of the “lower” plant populations of Montana’s waterways that includes references for further reading; Dee Strickler describes Aquilegia variations in, “A Native Columbine Hybrid: Aquilegia x Eliator with references; and editor Jan Nixon includes, “The Earlybirds: Montana’s Earliest Spring Wildflowers.”
V 4, No. 4, Summer 1991 – “Has Salt Tolerance Pre-Adapted Inland Saltgrass for Metal Tolerance?” by R. A. Prodgers discusses ecological and physiological characteristics of Distichlis spicata var stricta that allow it to occur on metal-contaminated sites along Silver Bow Creek with references; Carol J. Morris offers “Tips for Wildflower Cultivation”; B. John Losensky offers tips to reduce spotted knapweed spread in, “Roadside Vegetation Cover Affects Spotted Knapweed Density”; field trip reports for “Miller Creek Shooting Stars,” “Columbia Mountain Trail,” and “Mount Jumbo – Over the Top”; and the issue included as an insert an identification sheet comparing the invasive Potentilla recta with the native Potentilla gracilis.