I’ve been working on this one-pager to use on our school walks — a limited field guide to the plants the kids might see year-round in the most accessible areas. It might have to expand to two pages; I have thought of more things to add!
A year-and-a-bit ago, I signed up to re-do all the internal signage in our state park visitor center, to make it consistent and professional. Today I installed Phase 2 of the project, including this new, double-sided sign on the door of the children’s nature room.
Working as a volunteer at Malibu Creek State Park is such a joy for me, a great fit for my skills and passions. Sometimes I can’t believe I get to live this life. So so lucky, am I.
I’ve really enjoyed seeing, and smelling, the vinegarweed that‘s now running riot at the State Park. This annual herb, a member of the mint family, is native to California, though it occurs in other parts of the western U.S. Its preferred habitats are coastal sage scrub, oak woodland, foothill woodland, and chaparral.
The volatile oils in its foliage have a strong vinegar odour, which grazing animals find unpalatable but I quite enjoy sniffing.
Vinegarweed is an important late summer pollen source for native bees and other insects. When a pollinating insect lands on the lower lobes of the corolla, and inserts its mouth parts into the nectar-containing section, the narrow corolla portion above is straightened and snaps rapidly downward brushing pollen onto the insect’s back. Nature never ceases to amaze.
Before driving home from my shift at the state park visitor center, I sat under a tree in the parking lot to record thoughts and sounds. I really love my (volunteer) job. The people who come in — they want what we’re selling. I don’t mean drinks and branded swag, but hiking trails, wildlife, history, geology, a respite from the city. It’s such a pleasure to answer their questions (and provoke more), show them something they‘ve never seen, give them a new experience, or provide a comfort.
And when your colleague sends you home with a bunch of art supplies? Bonus! (thanks Dave!)
We bought some new skulls for the Visitor Center (legally and ethically obtained).
The Matilija Poppies are putting on a lovely show in the Park. Romneya coulteri is native to California and northern Mexico. The plant grows from 2 to 3 metres (6 to 9 feet) tall, with very large flowers that somewhat resemble a fried egg.
The flower is the largest of any California native species. It was nominated as state flower in 1890, but the California poppy won the title in a landslide.
Since the oaks finished flowering, I’ve been checking on the baby acorns at every opportunity. The valley oaks have the lead at this point; they will eventually be much larger than the coast live oak acorns so that’s not surprising. It’s fun to peek among the leaves and see what I can spot — not every oak produces flowers/acorns every year so it’s a bit of a treasure hunt.
Digger bees, although solitary, nest in large aggregations. Each female digs her own tunnel, which can be up to a foot deep and have several branches. Each branch terminates in a chamber where the female lays a single egg, providing it with pollen and nectar collected from flowers. The larvae hatch and consume the stored food, then grow into pupae and then into adult bees, all while underground.
Next spring or early summer the adults will emerge, mate, and do it all over again … Right now we‘re at the mating stage, by the looks of things! I don’t know if they will re-use the existing tunnels or dig new ones. I‘ll keep checking on them.
There are also a few bee flies (possibly tribe Villini) hovering about at ground level. The larval stages of bee flies are predators or parasitoids of the eggs and larvae of other insects. The adult females usually deposit eggs in the vicinity of possible hosts, quite often in the burrows of beetles or wasps/solitary bees. So I’m pretty sure that’s what they’re looking to do! It’s a fly-eat-bee world.
Click to enbiggen.
We’ve all been excited about the digger bees at the Park, but we also have digger wasps actively nesting quite close to the Visitor Center.
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