Showing posts with label mustards. Show all posts
Showing posts with label mustards. Show all posts

Sunday, April 17, 2011

This is an appropriately named mustard; it must have been at least 3 feet tall on a slender stalk. We only noticed this one. So, as I was reading the Wikipedia entry about tower mustard, and considering it's native to Europe, Asia, North Africa, and apparently to California and elsewhere, a big question comes to mind: How do people determine if any plant is native or introduced?

Friday, February 4, 2011



summer field mustard
Hirschfeldia incana
Brassicaceae

These were not technically in Hatton Canyon and were located across Carmel Valley Road. Don't quote me on this ID. I really should take a flower ID class. I'm trying to get over my prejudice for invasive non-native plant species. It's not their fault for being so successful. Of course, I'm not in the business of restoring habitats, either. Taken at face value, they really are quite pretty and extraordinarily common.

ps - I've added a postscript to an older mustard post, but will repeat it here. For plants, I often use the common names according to The Jepson Online Interchange from UC Berkeley, e.g., click to see the page for this particular species. I've found both Calflora (often embedded in scientific name ID) and CalPhotos (often embedded in common name ID) to be inconsistent in their use of common names due to database requirements and a variety of submission sources.

Thursday, March 4, 2010


This is a very bold, non-native mustard and covers many hills in a bright yellow. I'm using Calflora for this ID. It's also known as Brassica campestris and is closely related to rapeseed (Brassica napus). As I was trying to figure out the difference between the two species, I came across this genetic Triangle of U theory. Interesting.

As an aside - speaking of rapeseed, does anyone else smell and taste fish in canola oil? I'm guessing it's a genetic trait like with phenylthiocarbamide. We've only recently discovered our sensitivity to canola oil's fishiness. And here I long thought fishy tasting fries at certain local restaurants were due to dirty fryer oil. Plus, it's too bad our local grocer has stopped carrying Best Foods mayo with olive oil, because the alternative brand Kraft primarily contains canola oil. Phooey!

ps 02/09/11 - For common names of plants, I often look to The Jepson Online Interchange from UC Berkeley, e.g., click to see the page for this particular species.

acmon blue ~ 03/04/10 ~ Carmel Valley Road


acmon blue on rape mustard
Plebejus acmon on Brassica rapa
Brassicaceae

I'm not positive about this ID. Usually I ID based on what's common, in this case an acmon blue, or simply state I don't know. However, it could be a lupine blue (Plebejus lupinus), because from above there's an obvious black border on the inside of the hindwing's orange band and the forewing black border is fairly wide. Then again, it could be an early spring acmon blue female. Erg! Can anyone help me with this ID?

It was happenstance that I even captured this butterfly on camera, because I jumped out of the car to get a close-up shot of the yellow flowers which covered the hills where Carmel Valley Road meets G17. I'll post pictures of the hills and ID the flowers later.

ps 03/07/10 - On a whim, I queried Art Shapiro, professor at UC Davis and author of Field Guide to Butterflies of the San Francisco Bay and Sacramento Valley Regions, about this butterfly ID. He was kind enough to promptly reply, "It's a female acmon of the early-spring phenotype "cottlei," but abnormally heavily-marked on the lower surface--so much so that it superficially resembles a Euphilotes battoides! The ID is made easier by the fact that nothing else but acmon would be out this early in the year on the central coast (or almost anywhere). Even at sea level, lupini--which is always found in chaparral in the central Coast Ranges--wouldn't be out before April (or May!). The flowers appear (I can barely see any leaves) to be either Brassica campestris or Brassica napus, both naturalized weedy Old World mustards. Thanks for the kind words." Thank you, Dr. Shapiro!