Mountain Plants of the Western Cascades

Posts Tagged ‘Hosackia’

There were at least five large areas of narrowleaf mule’s ears in the lower half of Mistmaiden Meadow.

I was surprised to see three different blooming clumps of Oregon iris (Iris tenax) along Road 140. While very common at low elevations, this is only the second area I’ve ever found them above 3500′. In eastern Lane County, they usually give way to slender-tubed iris (I. chrysophylla) at about 1500′.

On July 7, I headed back up to the meadow on the west side of Sourgrass Mountain that I’m calling “Mistmaiden Meadow.” My first stop was the roadside along the east end of Road 140 with beargrass (Xerophyllum tenax) and other goodies because it had been an interesting spot on the previous trips. As I mentioned in the report on my last trip (see “Mistmaiden Meadow” Still Outstanding), there were a number of butterflies there, so I wanted to see what was flying about at this point. Once again, I saw several pretty bramble green hairstreaks. Also present were silver-spotted skippers and persius duskywings. What do these three butterflies have in common? They all use big deervetch (Hosackia crassifolia, formerly Lotus crassifolius) as a host food plant for their caterpillars. This species likes disturbed areas and is abundant along the road here. It appeared to be attracting a lot of other insects as well. Bumblebees were busy flying from one flower to the next. I found several caterpillars that did not look like butterflies munching through the leaves. New for me were some tiny and strange-looking lace bugs (Corythucha sp.), but they were so small my photos didn’t come out well enough to include. I wouldn’t have thought about planting something as large as big deervetch—and I’ve never seen it advertised by a nursery—but it seems this species is very popular with insects, and it isn’t unattractive, with its reddish flowers and glaucous leaves. Maybe I’ll collect some seeds on one of my return trips. Read the rest of this entry »

Rosy plectritis paints the hillside pink as Daniel and Angela climb back up “Mistmaiden Meadow.”

Bramble green hairstreaks are really hard to tell from Sheridan’s green hairstreaks; the former has less green on the underside of the forewing and less conspicuous white markings. The best way to tell is to look around for the host food plant as they don’t travel very far from it. The road here is lined with big deervetch (Hosackia crassifolia), the main host food plant of the bramble. Sheridan’s uses buckwheats, none of which grow there. This is where a botany background really helps in learning about butterflies.

Continuing my periodic surveying of what I’m now calling “Mistmaiden Meadow,” the steep meadow on the west flank of Sourgrass Mountain, I headed back up on June 25. This time I was accompanied by fellow NPSO member Angela Soto and her partner, Daniel. My plan was pretty much to follow what Sheila Klest and I did a couple of weeks before (see Shooting Stars are Stars of a Great Day), going to Mistmaiden Meadow and then on to Elk Camp and Nevergo Meadow. Before we even got to the meadow, we had to stop for a small roadside wet spot on Road 1912 when I spotted devil’s club (Oplopanax horridus) out of the corner of my eye. This striking spiny shrub is not that common in southern Lane County, so I don’t see it too often. I’m not sure how I missed it on my previous two trips, although it probably hadn’t leafed out on my first trip this year (see Early Look at Meadow on Sourgrass Mountain).
This spot was just before the intersection where we turn left onto Road 140. Read the rest of this entry »