Malosma laurina

Catching up in the PerpJo. Not much is flowering now, but the sumac is!

Malosma laurina is a large, rounded evergreen shrub or small tree growing 3 to 5 meters tall. The fragrant leaves and stems, being full of volatile compounds, contribute to the characteristic fragrance of chaparral. The flowers give off a “woodsy-herbal” smell, reminiscent of green apples and turpentine.

The fruit is a whitish drupe 3 mm in diameter with a smooth, flattish stone inside. The Chumash crushed and ate the dried fruits of Malosma laurina and also used the root bark to make a tea for treating dysentery.

Laurel sumac grows natively along the Southern California coastline in frost-free areas. It’s a very tough plant, hard to eradicate — if a fire burns its above ground parts, a large burl underground will re-sprout. It grows new leaves and stems all year long, even during hot dry summers, when most native plants stop growing.

Manduca sexta

Here’s something interesting: hornworms’ hemolymph (blood) is blue, coloured by a protein called insecticyanin. The foliage they eat contains carotenoids, which are primarily yellow in hue. The resulting combination (blue + yellow) gives them their green colouring. If fed a wheatgerm-based diet in a lab, these caterpillars are turquoise due to the lack of carotenoids in their diet.

Both tobacco hornworms and the very similar tomato hornworms are big fans of Solanaceae (nightshades like tomatoes, potatoes, peppers, tobacco), but they also eat crucifers, legumes, eucalyptus, ficus, and other plants.

Kuruvunga Springs

Would you drink from a spring in the middle of Los Angeles? I did. It tasted fairly neutral, and I didn’t get sick. In fact, someone in the museum told my friend the water was reputed to be heal joint and muscle pain. Regardless, it was nice to drink water straight from the ground in the middle of a metropolis, with no ill-effects.

dracaena

I went to my first Urban Sketchers event in a year; we met at Kuruvunga Village Springs, which is only a 30 minute drive from home, but I’d somehow never heard of it before. This very large dragon tree caught my attention.

A couple of fun things happened when I arrived. First I saw a guy I worked with years ago, and his wife, and we had a nice catchup. He was just randomly visiting the springs that day, nothing to do with USK. Then, I overheard one of the other sketchers mention John Muir Laws, so I sidled over and told her about our new nature journal club. She was very interested and said she’ll come along. Yay!